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Commit | Line | Data |
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74510d4b ML |
1 | /* |
2 | * This file is part of the libserialport project. | |
3 | * | |
4 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> | |
f77bb46d ML |
5 | * Copyright (C) 2010-2015 Uwe Hermann <uwe@hermann-uwe.de> |
6 | * Copyright (C) 2013-2015 Martin Ling <martin-libserialport@earth.li> | |
31b3a8f5 | 7 | * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz> |
a93fb468 | 8 | * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org> |
74510d4b ML |
9 | * |
10 | * This program is free software: you can redistribute it and/or modify | |
11 | * it under the terms of the GNU Lesser General Public License as | |
12 | * published by the Free Software Foundation, either version 3 of the | |
13 | * License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU Lesser General Public License | |
21 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
22 | */ | |
23 | ||
1a584c45 | 24 | #include <config.h> |
f6a1fb65 | 25 | #include "libserialport.h" |
e33dcf90 | 26 | #include "libserialport_internal.h" |
da2748bf | 27 | |
6c6aebe7 | 28 | static const struct std_baudrate std_baudrates[] = { |
da2748bf ML |
29 | #ifdef _WIN32 |
30 | /* | |
31 | * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to | |
32 | * have documented CBR_* macros. | |
33 | */ | |
34 | BAUD(110), BAUD(300), BAUD(600), BAUD(1200), BAUD(2400), BAUD(4800), | |
35 | BAUD(9600), BAUD(14400), BAUD(19200), BAUD(38400), BAUD(57600), | |
eac329d2 | 36 | BAUD(115200), BAUD(128000), BAUD(256000), |
da2748bf | 37 | #else |
eac329d2 UH |
38 | BAUD(50), BAUD(75), BAUD(110), BAUD(134), BAUD(150), BAUD(200), |
39 | BAUD(300), BAUD(600), BAUD(1200), BAUD(1800), BAUD(2400), BAUD(4800), | |
40 | BAUD(9600), BAUD(19200), BAUD(38400), BAUD(57600), BAUD(115200), | |
41 | BAUD(230400), | |
da2748bf | 42 | #if !defined(__APPLE__) && !defined(__OpenBSD__) |
eac329d2 | 43 | BAUD(460800), |
da2748bf ML |
44 | #endif |
45 | #endif | |
46 | }; | |
47 | ||
6c6aebe7 UH |
48 | #define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates) |
49 | ||
863b35e6 ML |
50 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
51 | ||
eb6ed20f ML |
52 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
53 | struct sp_port_config *config); | |
e33dcf90 | 54 | |
eb6ed20f ML |
55 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
56 | const struct sp_port_config *config); | |
80186526 | 57 | |
9a7945af ML |
58 | /* Timing abstraction */ |
59 | ||
60 | struct time { | |
3317d678 ML |
61 | #ifdef _WIN32 |
62 | int64_t ticks; | |
63 | #else | |
9a7945af | 64 | struct timeval tv; |
3317d678 | 65 | #endif |
9a7945af ML |
66 | }; |
67 | ||
32dbe2d2 | 68 | struct timeout { |
08eb25f5 ML |
69 | unsigned int ms, limit_ms; |
70 | struct time start, now, end, delta, delta_max; | |
32dbe2d2 | 71 | struct timeval delta_tv; |
bd72614f | 72 | bool calls_started, overflow; |
32dbe2d2 ML |
73 | }; |
74 | ||
9a7945af | 75 | static void time_get(struct time *time) |
573feabc | 76 | { |
3317d678 ML |
77 | #ifdef _WIN32 |
78 | LARGE_INTEGER count; | |
79 | QueryPerformanceCounter(&count); | |
80 | time->ticks = count.QuadPart; | |
81 | #elif defined(HAVE_CLOCK_GETTIME) | |
f40ea9d4 | 82 | struct timespec ts; |
7fb9a7b0 ML |
83 | if (clock_gettime(CLOCK_MONOTONIC, &ts) == -1) |
84 | clock_gettime(CLOCK_REALTIME, &ts); | |
9a7945af ML |
85 | time->tv.tv_sec = ts.tv_sec; |
86 | time->tv.tv_usec = ts.tv_nsec / 1000; | |
192e7749 ML |
87 | #elif defined(__APPLE__) |
88 | mach_timebase_info_data_t info; | |
89 | mach_timebase_info(&info); | |
90 | uint64_t ticks = mach_absolute_time(); | |
91 | uint64_t ns = (ticks * info.numer) / info.denom; | |
9a7945af ML |
92 | time->tv.tv_sec = ns / 1000000000; |
93 | time->tv.tv_usec = (ns % 1000000000) / 1000; | |
f40ea9d4 | 94 | #else |
9a7945af | 95 | gettimeofday(&time->tv, NULL); |
f40ea9d4 | 96 | #endif |
573feabc | 97 | } |
9a7945af ML |
98 | |
99 | static void time_set_ms(struct time *time, unsigned int ms) | |
100 | { | |
3317d678 ML |
101 | #ifdef _WIN32 |
102 | LARGE_INTEGER frequency; | |
103 | QueryPerformanceFrequency(&frequency); | |
104 | time->ticks = ms * (frequency.QuadPart / 1000); | |
105 | #else | |
9a7945af ML |
106 | time->tv.tv_sec = ms / 1000; |
107 | time->tv.tv_usec = (ms % 1000) * 1000; | |
3317d678 | 108 | #endif |
9a7945af ML |
109 | } |
110 | ||
111 | static void time_add(const struct time *a, | |
112 | const struct time *b, struct time *result) | |
113 | { | |
3317d678 ML |
114 | #ifdef _WIN32 |
115 | result->ticks = a->ticks + b->ticks; | |
116 | #else | |
9a7945af | 117 | timeradd(&a->tv, &b->tv, &result->tv); |
3317d678 | 118 | #endif |
9a7945af ML |
119 | } |
120 | ||
121 | static void time_sub(const struct time *a, | |
122 | const struct time *b, struct time *result) | |
123 | { | |
3317d678 ML |
124 | #ifdef _WIN32 |
125 | result->ticks = a->ticks - b->ticks; | |
126 | #else | |
9a7945af | 127 | timersub(&a->tv, &b->tv, &result->tv); |
3317d678 | 128 | #endif |
9a7945af ML |
129 | } |
130 | ||
131 | static bool time_greater(const struct time *a, const struct time *b) | |
132 | { | |
3317d678 ML |
133 | #ifdef _WIN32 |
134 | return (a->ticks > b->ticks); | |
135 | #else | |
9a7945af | 136 | return timercmp(&a->tv, &b->tv, >); |
3317d678 | 137 | #endif |
9a7945af ML |
138 | } |
139 | ||
140 | static void time_as_timeval(const struct time *time, struct timeval *tv) | |
141 | { | |
3317d678 ML |
142 | #ifdef _WIN32 |
143 | LARGE_INTEGER frequency; | |
144 | QueryPerformanceFrequency(&frequency); | |
145 | tv->tv_sec = time->ticks / frequency.QuadPart; | |
146 | tv->tv_usec = (time->ticks % frequency.QuadPart) / | |
147 | (frequency.QuadPart / 1000000); | |
148 | #else | |
9a7945af | 149 | *tv = time->tv; |
3317d678 | 150 | #endif |
9a7945af ML |
151 | } |
152 | ||
153 | static unsigned int time_as_ms(const struct time *time) | |
154 | { | |
3317d678 ML |
155 | #ifdef _WIN32 |
156 | LARGE_INTEGER frequency; | |
157 | QueryPerformanceFrequency(&frequency); | |
158 | return time->ticks / (frequency.QuadPart / 1000); | |
159 | #else | |
9a7945af | 160 | return time->tv.tv_sec * 1000 + time->tv.tv_usec / 1000; |
3317d678 | 161 | #endif |
9a7945af ML |
162 | } |
163 | ||
32dbe2d2 ML |
164 | static void timeout_start(struct timeout *timeout, unsigned int timeout_ms) |
165 | { | |
166 | timeout->ms = timeout_ms; | |
167 | ||
32dbe2d2 ML |
168 | /* Get time at start of operation. */ |
169 | time_get(&timeout->start); | |
170 | /* Define duration of timeout. */ | |
171 | time_set_ms(&timeout->delta, timeout_ms); | |
172 | /* Calculate time at which we should give up. */ | |
173 | time_add(&timeout->start, &timeout->delta, &timeout->end); | |
08eb25f5 ML |
174 | /* Disable limit unless timeout_limit() called. */ |
175 | timeout->limit_ms = 0; | |
bd72614f ML |
176 | /* First blocking call has not yet been made. */ |
177 | timeout->calls_started = false; | |
08eb25f5 ML |
178 | } |
179 | ||
180 | static void timeout_limit(struct timeout *timeout, unsigned int limit_ms) | |
181 | { | |
182 | timeout->limit_ms = limit_ms; | |
183 | timeout->overflow = (timeout->ms > timeout->limit_ms); | |
184 | time_set_ms(&timeout->delta_max, timeout->limit_ms); | |
32dbe2d2 ML |
185 | } |
186 | ||
187 | static bool timeout_check(struct timeout *timeout) | |
188 | { | |
bd72614f ML |
189 | if (!timeout->calls_started) |
190 | return false; | |
191 | ||
32dbe2d2 ML |
192 | if (timeout->ms == 0) |
193 | return false; | |
194 | ||
195 | time_get(&timeout->now); | |
196 | time_sub(&timeout->end, &timeout->now, &timeout->delta); | |
08eb25f5 ML |
197 | if (timeout->limit_ms) |
198 | if ((timeout->overflow = time_greater(&timeout->delta, &timeout->delta_max))) | |
199 | timeout->delta = timeout->delta_max; | |
32dbe2d2 ML |
200 | |
201 | return time_greater(&timeout->now, &timeout->end); | |
202 | } | |
203 | ||
bd72614f ML |
204 | static void timeout_update(struct timeout *timeout) |
205 | { | |
206 | timeout->calls_started = true; | |
207 | } | |
208 | ||
3317d678 | 209 | #ifndef _WIN32 |
32dbe2d2 ML |
210 | static struct timeval *timeout_timeval(struct timeout *timeout) |
211 | { | |
212 | if (timeout->ms == 0) | |
213 | return NULL; | |
214 | ||
215 | time_as_timeval(&timeout->delta, &timeout->delta_tv); | |
216 | ||
217 | return &timeout->delta_tv; | |
218 | } | |
3317d678 | 219 | #endif |
32dbe2d2 ML |
220 | |
221 | static unsigned int timeout_remaining_ms(struct timeout *timeout) | |
222 | { | |
9d1ca7c8 | 223 | if (timeout->limit_ms && timeout->overflow) |
08eb25f5 | 224 | return timeout->limit_ms; |
32dbe2d2 ML |
225 | else |
226 | return time_as_ms(&timeout->delta); | |
227 | } | |
573feabc | 228 | |
970f279a | 229 | SP_API enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
230 | { |
231 | struct sp_port *port; | |
5a8810e2 | 232 | #ifndef NO_PORT_METADATA |
a93fb468 | 233 | enum sp_return ret; |
5a8810e2 | 234 | #endif |
5919c913 | 235 | int len; |
d54e9004 | 236 | |
c33efc48 ML |
237 | TRACE("%s, %p", portname, port_ptr); |
238 | ||
32b5ac05 | 239 | if (!port_ptr) |
c33efc48 | 240 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 241 | |
77f262c4 ML |
242 | *port_ptr = NULL; |
243 | ||
d4babed2 | 244 | if (!portname) |
c33efc48 | 245 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 246 | |
7890cef6 | 247 | DEBUG_FMT("Building structure for port %s", portname); |
ea667be7 | 248 | |
95bad38c ST |
249 | #if !defined(_WIN32) && defined(HAVE_REALPATH) |
250 | /* | |
251 | * get_port_details() below tries to be too smart and figure out | |
252 | * some transport properties from the port name which breaks with | |
253 | * symlinks. Therefore we canonicalize the portname first. | |
254 | */ | |
255 | char pathbuf[PATH_MAX + 1]; | |
256 | char *res = realpath(portname, pathbuf); | |
257 | if (!res) | |
258 | RETURN_ERROR(SP_ERR_ARG, "Could not retrieve realpath behind port name"); | |
259 | ||
260 | portname = pathbuf; | |
261 | #endif | |
262 | ||
d54e9004 | 263 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 264 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 265 | |
5919c913 ML |
266 | len = strlen(portname) + 1; |
267 | ||
eac329d2 | 268 | if (!(port->name = malloc(len))) { |
d54e9004 | 269 | free(port); |
c33efc48 | 270 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
271 | } |
272 | ||
273 | memcpy(port->name, portname, len); | |
274 | ||
8f471c66 | 275 | #ifdef _WIN32 |
e31f2c6b | 276 | port->usb_path = NULL; |
8f471c66 | 277 | port->hdl = INVALID_HANDLE_VALUE; |
39df7833 ML |
278 | port->write_buf = NULL; |
279 | port->write_buf_size = 0; | |
8f471c66 ML |
280 | #else |
281 | port->fd = -1; | |
282 | #endif | |
283 | ||
e33dcf90 ML |
284 | port->description = NULL; |
285 | port->transport = SP_TRANSPORT_NATIVE; | |
286 | port->usb_bus = -1; | |
287 | port->usb_address = -1; | |
288 | port->usb_vid = -1; | |
289 | port->usb_pid = -1; | |
290 | port->usb_manufacturer = NULL; | |
291 | port->usb_product = NULL; | |
292 | port->usb_serial = NULL; | |
293 | port->bluetooth_address = NULL; | |
294 | ||
e4ce975a | 295 | #ifndef NO_PORT_METADATA |
e33dcf90 | 296 | if ((ret = get_port_details(port)) != SP_OK) { |
a93fb468 AJ |
297 | sp_free_port(port); |
298 | return ret; | |
299 | } | |
e4ce975a | 300 | #endif |
a93fb468 | 301 | |
77f262c4 ML |
302 | *port_ptr = port; |
303 | ||
c33efc48 | 304 | RETURN_OK(); |
d54e9004 ML |
305 | } |
306 | ||
970f279a | 307 | SP_API char *sp_get_port_name(const struct sp_port *port) |
1c5aae9d ML |
308 | { |
309 | TRACE("%p", port); | |
310 | ||
311 | if (!port) | |
312 | return NULL; | |
313 | ||
9caa2e86 | 314 | RETURN_STRING(port->name); |
1c5aae9d ML |
315 | } |
316 | ||
f1480939 | 317 | SP_API char *sp_get_port_description(const struct sp_port *port) |
a93fb468 AJ |
318 | { |
319 | TRACE("%p", port); | |
320 | ||
321 | if (!port || !port->description) | |
322 | return NULL; | |
323 | ||
9caa2e86 | 324 | RETURN_STRING(port->description); |
a93fb468 AJ |
325 | } |
326 | ||
ad036cc8 | 327 | SP_API enum sp_transport sp_get_port_transport(const struct sp_port *port) |
a93fb468 AJ |
328 | { |
329 | TRACE("%p", port); | |
330 | ||
331 | if (!port) | |
332 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
333 | ||
9caa2e86 | 334 | RETURN_INT(port->transport); |
a93fb468 AJ |
335 | } |
336 | ||
970f279a AJ |
337 | SP_API enum sp_return sp_get_port_usb_bus_address(const struct sp_port *port, |
338 | int *usb_bus,int *usb_address) | |
a93fb468 AJ |
339 | { |
340 | TRACE("%p", port); | |
341 | ||
342 | if (!port) | |
343 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
344 | if (port->transport != SP_TRANSPORT_USB) | |
345 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
346 | if (port->usb_bus < 0 || port->usb_address < 0) |
347 | RETURN_ERROR(SP_ERR_SUPP, "Bus and address values are not available"); | |
a93fb468 | 348 | |
dc422c04 UH |
349 | if (usb_bus) |
350 | *usb_bus = port->usb_bus; | |
351 | if (usb_address) | |
352 | *usb_address = port->usb_address; | |
a93fb468 AJ |
353 | |
354 | RETURN_OK(); | |
355 | } | |
356 | ||
970f279a AJ |
357 | SP_API enum sp_return sp_get_port_usb_vid_pid(const struct sp_port *port, |
358 | int *usb_vid, int *usb_pid) | |
a93fb468 AJ |
359 | { |
360 | TRACE("%p", port); | |
361 | ||
362 | if (!port) | |
363 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
364 | if (port->transport != SP_TRANSPORT_USB) | |
365 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
366 | if (port->usb_vid < 0 || port->usb_pid < 0) |
367 | RETURN_ERROR(SP_ERR_SUPP, "VID:PID values are not available"); | |
a93fb468 | 368 | |
dc422c04 UH |
369 | if (usb_vid) |
370 | *usb_vid = port->usb_vid; | |
371 | if (usb_pid) | |
372 | *usb_pid = port->usb_pid; | |
a93fb468 AJ |
373 | |
374 | RETURN_OK(); | |
375 | } | |
376 | ||
970f279a | 377 | SP_API char *sp_get_port_usb_manufacturer(const struct sp_port *port) |
a93fb468 AJ |
378 | { |
379 | TRACE("%p", port); | |
380 | ||
381 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_manufacturer) | |
382 | return NULL; | |
383 | ||
9caa2e86 | 384 | RETURN_STRING(port->usb_manufacturer); |
a93fb468 AJ |
385 | } |
386 | ||
970f279a | 387 | SP_API char *sp_get_port_usb_product(const struct sp_port *port) |
a93fb468 AJ |
388 | { |
389 | TRACE("%p", port); | |
390 | ||
391 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_product) | |
392 | return NULL; | |
393 | ||
9caa2e86 | 394 | RETURN_STRING(port->usb_product); |
a93fb468 AJ |
395 | } |
396 | ||
970f279a | 397 | SP_API char *sp_get_port_usb_serial(const struct sp_port *port) |
a93fb468 AJ |
398 | { |
399 | TRACE("%p", port); | |
400 | ||
401 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_serial) | |
402 | return NULL; | |
403 | ||
9caa2e86 | 404 | RETURN_STRING(port->usb_serial); |
a93fb468 AJ |
405 | } |
406 | ||
970f279a | 407 | SP_API char *sp_get_port_bluetooth_address(const struct sp_port *port) |
a93fb468 AJ |
408 | { |
409 | TRACE("%p", port); | |
410 | ||
411 | if (!port || port->transport != SP_TRANSPORT_BLUETOOTH | |
412 | || !port->bluetooth_address) | |
413 | return NULL; | |
414 | ||
9caa2e86 | 415 | RETURN_STRING(port->bluetooth_address); |
a93fb468 AJ |
416 | } |
417 | ||
970f279a AJ |
418 | SP_API enum sp_return sp_get_port_handle(const struct sp_port *port, |
419 | void *result_ptr) | |
3c126654 | 420 | { |
00d8c56d | 421 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
422 | |
423 | if (!port) | |
424 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
5f64c285 UH |
425 | if (!result_ptr) |
426 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
3c126654 ML |
427 | |
428 | #ifdef _WIN32 | |
429 | HANDLE *handle_ptr = result_ptr; | |
430 | *handle_ptr = port->hdl; | |
431 | #else | |
432 | int *fd_ptr = result_ptr; | |
433 | *fd_ptr = port->fd; | |
434 | #endif | |
435 | ||
436 | RETURN_OK(); | |
437 | } | |
438 | ||
970f279a AJ |
439 | SP_API enum sp_return sp_copy_port(const struct sp_port *port, |
440 | struct sp_port **copy_ptr) | |
32b5ac05 | 441 | { |
c33efc48 ML |
442 | TRACE("%p, %p", port, copy_ptr); |
443 | ||
32b5ac05 | 444 | if (!copy_ptr) |
c33efc48 | 445 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
446 | |
447 | *copy_ptr = NULL; | |
448 | ||
c33efc48 ML |
449 | if (!port) |
450 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
451 | ||
452 | if (!port->name) | |
453 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 454 | |
ea667be7 ML |
455 | DEBUG("Copying port structure"); |
456 | ||
9caa2e86 | 457 | RETURN_INT(sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
458 | } |
459 | ||
970f279a | 460 | SP_API void sp_free_port(struct sp_port *port) |
e3b2f7a4 | 461 | { |
c33efc48 ML |
462 | TRACE("%p", port); |
463 | ||
00d8c56d | 464 | if (!port) { |
c33efc48 ML |
465 | DEBUG("Null port"); |
466 | RETURN(); | |
467 | } | |
e3b2f7a4 | 468 | |
ea667be7 ML |
469 | DEBUG("Freeing port structure"); |
470 | ||
e3b2f7a4 ML |
471 | if (port->name) |
472 | free(port->name); | |
a93fb468 AJ |
473 | if (port->description) |
474 | free(port->description); | |
475 | if (port->usb_manufacturer) | |
476 | free(port->usb_manufacturer); | |
477 | if (port->usb_product) | |
478 | free(port->usb_product); | |
479 | if (port->usb_serial) | |
480 | free(port->usb_serial); | |
481 | if (port->bluetooth_address) | |
482 | free(port->bluetooth_address); | |
483 | #ifdef _WIN32 | |
484 | if (port->usb_path) | |
485 | free(port->usb_path); | |
39df7833 ML |
486 | if (port->write_buf) |
487 | free(port->write_buf); | |
a93fb468 | 488 | #endif |
e3b2f7a4 ML |
489 | |
490 | free(port); | |
c33efc48 ML |
491 | |
492 | RETURN(); | |
e3b2f7a4 ML |
493 | } |
494 | ||
970f279a AJ |
495 | SP_PRIV struct sp_port **list_append(struct sp_port **list, |
496 | const char *portname) | |
3b63f34d ML |
497 | { |
498 | void *tmp; | |
499 | unsigned int count; | |
f92f1f0c | 500 | |
81243567 UH |
501 | for (count = 0; list[count]; count++) |
502 | ; | |
d54e9004 | 503 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
504 | goto fail; |
505 | list = tmp; | |
77f262c4 | 506 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 507 | goto fail; |
db2794ce | 508 | list[count + 1] = NULL; |
3b63f34d | 509 | return list; |
f92f1f0c | 510 | |
3b63f34d ML |
511 | fail: |
512 | sp_free_port_list(list); | |
513 | return NULL; | |
514 | } | |
515 | ||
970f279a | 516 | SP_API enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 517 | { |
23e7fa37 | 518 | #ifndef NO_ENUMERATION |
d54e9004 | 519 | struct sp_port **list; |
48a4076f | 520 | int ret; |
23e7fa37 | 521 | #endif |
24c1a4bb | 522 | |
c33efc48 ML |
523 | TRACE("%p", list_ptr); |
524 | ||
dec10e31 ML |
525 | if (!list_ptr) |
526 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
527 | ||
63926415 UH |
528 | *list_ptr = NULL; |
529 | ||
8d12e620 ML |
530 | #ifdef NO_ENUMERATION |
531 | RETURN_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform"); | |
532 | #else | |
ea667be7 ML |
533 | DEBUG("Enumerating ports"); |
534 | ||
8d12e620 | 535 | if (!(list = malloc(sizeof(struct sp_port *)))) |
c33efc48 | 536 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
537 | |
538 | list[0] = NULL; | |
3b63f34d | 539 | |
48a4076f | 540 | ret = list_ports(&list); |
77f262c4 | 541 | |
8d12e620 | 542 | if (ret == SP_OK) { |
77f262c4 | 543 | *list_ptr = list; |
8d12e620 ML |
544 | } else { |
545 | sp_free_port_list(list); | |
77f262c4 ML |
546 | *list_ptr = NULL; |
547 | } | |
8d12e620 ML |
548 | |
549 | RETURN_CODEVAL(ret); | |
550 | #endif | |
3b63f34d ML |
551 | } |
552 | ||
970f279a | 553 | SP_API void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
554 | { |
555 | unsigned int i; | |
f92f1f0c | 556 | |
c33efc48 ML |
557 | TRACE("%p", list); |
558 | ||
dec10e31 ML |
559 | if (!list) { |
560 | DEBUG("Null list"); | |
561 | RETURN(); | |
562 | } | |
563 | ||
ea667be7 ML |
564 | DEBUG("Freeing port list"); |
565 | ||
3b63f34d | 566 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 567 | sp_free_port(list[i]); |
3b63f34d | 568 | free(list); |
c33efc48 ML |
569 | |
570 | RETURN(); | |
3b63f34d ML |
571 | } |
572 | ||
c33efc48 | 573 | #define CHECK_PORT() do { \ |
dc422c04 | 574 | if (!port) \ |
c33efc48 | 575 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ |
dc422c04 | 576 | if (!port->name) \ |
dec10e31 ML |
577 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ |
578 | } while (0) | |
579 | #ifdef _WIN32 | |
580 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 | 581 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
8062087a | 582 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 583 | } while (0) |
74510d4b | 584 | #else |
dec10e31 | 585 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 | 586 | if (port->fd < 0) \ |
8062087a | 587 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 588 | } while (0) |
74510d4b | 589 | #endif |
dec10e31 ML |
590 | #define CHECK_OPEN_PORT() do { \ |
591 | CHECK_PORT(); \ | |
592 | CHECK_PORT_HANDLE(); \ | |
593 | } while (0) | |
74510d4b | 594 | |
47fcf8ec ML |
595 | #ifdef WIN32 |
596 | /** To be called after port receive buffer is emptied. */ | |
597 | static enum sp_return restart_wait(struct sp_port *port) | |
598 | { | |
599 | DWORD wait_result; | |
600 | ||
601 | if (port->wait_running) { | |
602 | /* Check status of running wait operation. */ | |
603 | if (GetOverlappedResult(port->hdl, &port->wait_ovl, | |
604 | &wait_result, FALSE)) { | |
605 | DEBUG("Previous wait completed"); | |
606 | port->wait_running = FALSE; | |
607 | } else if (GetLastError() == ERROR_IO_INCOMPLETE) { | |
608 | DEBUG("Previous wait still running"); | |
609 | RETURN_OK(); | |
610 | } else { | |
611 | RETURN_FAIL("GetOverlappedResult() failed"); | |
612 | } | |
613 | } | |
614 | ||
615 | if (!port->wait_running) { | |
616 | /* Start new wait operation. */ | |
617 | if (WaitCommEvent(port->hdl, &port->events, | |
618 | &port->wait_ovl)) { | |
619 | DEBUG("New wait returned, events already pending"); | |
620 | } else if (GetLastError() == ERROR_IO_PENDING) { | |
621 | DEBUG("New wait running in background"); | |
622 | port->wait_running = TRUE; | |
623 | } else { | |
624 | RETURN_FAIL("WaitCommEvent() failed"); | |
625 | } | |
626 | } | |
627 | ||
628 | RETURN_OK(); | |
629 | } | |
630 | #endif | |
631 | ||
970f279a | 632 | SP_API enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 633 | { |
bccc7c9f ML |
634 | struct port_data data; |
635 | struct sp_port_config config; | |
636 | enum sp_return ret; | |
637 | ||
00d8c56d | 638 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 639 | |
dec10e31 ML |
640 | CHECK_PORT(); |
641 | ||
276ef1b9 | 642 | if (flags > SP_MODE_READ_WRITE) |
dec10e31 | 643 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 644 | |
7890cef6 | 645 | DEBUG_FMT("Opening port %s", port->name); |
ea667be7 | 646 | |
74510d4b | 647 | #ifdef _WIN32 |
537942c9 | 648 | DWORD desired_access = 0, flags_and_attributes = 0, errors; |
99945a1f | 649 | char *escaped_port_name; |
537942c9 | 650 | COMSTAT status; |
99945a1f ML |
651 | |
652 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
e48f0ece | 653 | if (!(escaped_port_name = malloc(strlen(port->name) + 5))) |
c33efc48 | 654 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
655 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
656 | ||
74510d4b | 657 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 658 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
659 | if (flags & SP_MODE_READ) |
660 | desired_access |= GENERIC_READ; | |
661 | if (flags & SP_MODE_WRITE) | |
74510d4b | 662 | desired_access |= GENERIC_WRITE; |
74510d4b | 663 | |
99945a1f | 664 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 665 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
666 | |
667 | free(escaped_port_name); | |
668 | ||
74510d4b | 669 | if (port->hdl == INVALID_HANDLE_VALUE) |
dc422c04 | 670 | RETURN_FAIL("Port CreateFile() failed"); |
e3dcf906 ML |
671 | |
672 | /* All timeouts initially disabled. */ | |
673 | port->timeouts.ReadIntervalTimeout = 0; | |
674 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
675 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
676 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
677 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 678 | |
e3dcf906 | 679 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
680 | sp_close(port); |
681 | RETURN_FAIL("SetCommTimeouts() failed"); | |
682 | } | |
e3dcf906 ML |
683 | |
684 | /* Prepare OVERLAPPED structures. */ | |
6f1186aa ML |
685 | #define INIT_OVERLAPPED(ovl) do { \ |
686 | memset(&port->ovl, 0, sizeof(port->ovl)); \ | |
687 | port->ovl.hEvent = INVALID_HANDLE_VALUE; \ | |
688 | if ((port->ovl.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)) \ | |
689 | == INVALID_HANDLE_VALUE) { \ | |
690 | sp_close(port); \ | |
691 | RETURN_FAIL(#ovl "CreateEvent() failed"); \ | |
692 | } \ | |
693 | } while (0) | |
694 | ||
695 | INIT_OVERLAPPED(read_ovl); | |
696 | INIT_OVERLAPPED(write_ovl); | |
697 | INIT_OVERLAPPED(wait_ovl); | |
698 | ||
699 | /* Set event mask for RX and error events. */ | |
700 | if (SetCommMask(port->hdl, EV_RXCHAR | EV_ERR) == 0) { | |
e3dcf906 | 701 | sp_close(port); |
6f1186aa | 702 | RETURN_FAIL("SetCommMask() failed"); |
e3dcf906 | 703 | } |
6f1186aa | 704 | |
e3dcf906 | 705 | port->writing = FALSE; |
47fcf8ec | 706 | port->wait_running = FALSE; |
e3dcf906 | 707 | |
47fcf8ec ML |
708 | ret = restart_wait(port); |
709 | ||
710 | if (ret < 0) { | |
711 | sp_close(port); | |
712 | RETURN_CODEVAL(ret); | |
713 | } | |
74510d4b | 714 | #else |
fa106ef1 | 715 | int flags_local = O_NONBLOCK | O_NOCTTY | O_CLOEXEC; |
f92f1f0c | 716 | |
74510d4b | 717 | /* Map 'flags' to the OS-specific settings. */ |
276ef1b9 | 718 | if ((flags & SP_MODE_READ_WRITE) == SP_MODE_READ_WRITE) |
74510d4b | 719 | flags_local |= O_RDWR; |
a036341b | 720 | else if (flags & SP_MODE_READ) |
74510d4b | 721 | flags_local |= O_RDONLY; |
a036341b ML |
722 | else if (flags & SP_MODE_WRITE) |
723 | flags_local |= O_WRONLY; | |
74510d4b ML |
724 | |
725 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 726 | RETURN_FAIL("open() failed"); |
bccc7c9f | 727 | #endif |
9cb98459 | 728 | |
e33ab9aa ML |
729 | ret = get_config(port, &data, &config); |
730 | ||
eac329d2 | 731 | if (ret < 0) { |
e33ab9aa | 732 | sp_close(port); |
c33efc48 | 733 | RETURN_CODEVAL(ret); |
e33ab9aa | 734 | } |
9cb98459 | 735 | |
bccc7c9f ML |
736 | /* Set sane port settings. */ |
737 | #ifdef _WIN32 | |
738 | data.dcb.fBinary = TRUE; | |
739 | data.dcb.fDsrSensitivity = FALSE; | |
740 | data.dcb.fErrorChar = FALSE; | |
741 | data.dcb.fNull = FALSE; | |
34442106 | 742 | data.dcb.fAbortOnError = FALSE; |
bccc7c9f | 743 | #else |
b251be4b | 744 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
745 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
746 | #ifdef IUCLC | |
747 | data.term.c_iflag &= ~IUCLC; | |
748 | #endif | |
749 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
750 | #ifdef OLCUC | |
751 | data.term.c_oflag &= ~OLCUC; | |
752 | #endif | |
753 | #ifdef NLDLY | |
754 | data.term.c_oflag &= ~NLDLY; | |
755 | #endif | |
756 | #ifdef CRDLY | |
757 | data.term.c_oflag &= ~CRDLY; | |
758 | #endif | |
759 | #ifdef TABDLY | |
760 | data.term.c_oflag &= ~TABDLY; | |
761 | #endif | |
762 | #ifdef BSDLY | |
763 | data.term.c_oflag &= ~BSDLY; | |
764 | #endif | |
765 | #ifdef VTDLY | |
766 | data.term.c_oflag &= ~VTDLY; | |
767 | #endif | |
768 | #ifdef FFDLY | |
769 | data.term.c_oflag &= ~FFDLY; | |
770 | #endif | |
b251be4b | 771 | #ifdef OFILL |
9cb98459 ML |
772 | data.term.c_oflag &= ~OFILL; |
773 | #endif | |
c3e05092 | 774 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 775 | data.term.c_cc[VMIN] = 0; |
b251be4b | 776 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 777 | |
b251be4b ML |
778 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
779 | data.term.c_cflag |= (CLOCAL | CREAD | HUPCL); | |
bccc7c9f | 780 | #endif |
9cb98459 | 781 | |
537942c9 | 782 | #ifdef _WIN32 |
1a2a1544 UH |
783 | if (ClearCommError(port->hdl, &errors, &status) == 0) |
784 | RETURN_FAIL("ClearCommError() failed"); | |
537942c9 ML |
785 | #endif |
786 | ||
e33ab9aa ML |
787 | ret = set_config(port, &data, &config); |
788 | ||
eac329d2 | 789 | if (ret < 0) { |
e33ab9aa | 790 | sp_close(port); |
c33efc48 | 791 | RETURN_CODEVAL(ret); |
e33ab9aa | 792 | } |
74510d4b | 793 | |
c33efc48 | 794 | RETURN_OK(); |
74510d4b ML |
795 | } |
796 | ||
970f279a | 797 | SP_API enum sp_return sp_close(struct sp_port *port) |
74510d4b | 798 | { |
c33efc48 ML |
799 | TRACE("%p", port); |
800 | ||
dec10e31 | 801 | CHECK_OPEN_PORT(); |
74510d4b | 802 | |
7890cef6 | 803 | DEBUG_FMT("Closing port %s", port->name); |
ea667be7 | 804 | |
74510d4b ML |
805 | #ifdef _WIN32 |
806 | /* Returns non-zero upon success, 0 upon failure. */ | |
807 | if (CloseHandle(port->hdl) == 0) | |
dc422c04 | 808 | RETURN_FAIL("Port CloseHandle() failed"); |
8f471c66 | 809 | port->hdl = INVALID_HANDLE_VALUE; |
6f1186aa ML |
810 | |
811 | /* Close event handles for overlapped structures. */ | |
812 | #define CLOSE_OVERLAPPED(ovl) do { \ | |
813 | if (port->ovl.hEvent != INVALID_HANDLE_VALUE && \ | |
814 | CloseHandle(port->ovl.hEvent) == 0) \ | |
815 | RETURN_FAIL(# ovl "event CloseHandle() failed"); \ | |
816 | } while (0) | |
817 | CLOSE_OVERLAPPED(read_ovl); | |
818 | CLOSE_OVERLAPPED(write_ovl); | |
819 | CLOSE_OVERLAPPED(wait_ovl); | |
820 | ||
39df7833 ML |
821 | if (port->write_buf) { |
822 | free(port->write_buf); | |
823 | port->write_buf = NULL; | |
824 | } | |
74510d4b ML |
825 | #else |
826 | /* Returns 0 upon success, -1 upon failure. */ | |
827 | if (close(port->fd) == -1) | |
c33efc48 | 828 | RETURN_FAIL("close() failed"); |
8f471c66 | 829 | port->fd = -1; |
74510d4b ML |
830 | #endif |
831 | ||
c33efc48 | 832 | RETURN_OK(); |
74510d4b ML |
833 | } |
834 | ||
970f279a | 835 | SP_API enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 836 | { |
00d8c56d | 837 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 838 | |
dec10e31 ML |
839 | CHECK_OPEN_PORT(); |
840 | ||
841 | if (buffers > SP_BUF_BOTH) | |
842 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 843 | |
0ba3e49b | 844 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 | 845 | |
7890cef6 ML |
846 | DEBUG_FMT("Flushing %s buffers on port %s", |
847 | buffer_names[buffers], port->name); | |
ea667be7 | 848 | |
74510d4b | 849 | #ifdef _WIN32 |
fd8fd11a ML |
850 | DWORD flags = 0; |
851 | if (buffers & SP_BUF_INPUT) | |
852 | flags |= PURGE_RXCLEAR; | |
853 | if (buffers & SP_BUF_OUTPUT) | |
854 | flags |= PURGE_TXCLEAR; | |
855 | ||
74510d4b | 856 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 857 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 858 | RETURN_FAIL("PurgeComm() failed"); |
47fcf8ec ML |
859 | |
860 | if (buffers & SP_BUF_INPUT) | |
861 | TRY(restart_wait(port)); | |
74510d4b | 862 | #else |
fd8fd11a | 863 | int flags = 0; |
ad749855 | 864 | if (buffers == SP_BUF_BOTH) |
fd8fd11a | 865 | flags = TCIOFLUSH; |
ad749855 | 866 | else if (buffers == SP_BUF_INPUT) |
fd8fd11a | 867 | flags = TCIFLUSH; |
ad749855 | 868 | else if (buffers == SP_BUF_OUTPUT) |
fd8fd11a ML |
869 | flags = TCOFLUSH; |
870 | ||
74510d4b | 871 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 872 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 873 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 874 | #endif |
c33efc48 | 875 | RETURN_OK(); |
74510d4b ML |
876 | } |
877 | ||
970f279a | 878 | SP_API enum sp_return sp_drain(struct sp_port *port) |
69a3739c | 879 | { |
c33efc48 ML |
880 | TRACE("%p", port); |
881 | ||
dec10e31 | 882 | CHECK_OPEN_PORT(); |
69a3739c | 883 | |
7890cef6 | 884 | DEBUG_FMT("Draining port %s", port->name); |
ea667be7 | 885 | |
69a3739c ML |
886 | #ifdef _WIN32 |
887 | /* Returns non-zero upon success, 0 upon failure. */ | |
888 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 889 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 890 | RETURN_OK(); |
69a3739c | 891 | #else |
2c827b21 ML |
892 | int result; |
893 | while (1) { | |
abd31fd9 ML |
894 | #if defined(__ANDROID__) && (__ANDROID_API__ < 21) |
895 | /* Android only has tcdrain from platform 21 onwards. | |
896 | * On previous API versions, use the ioctl directly. */ | |
33fd8804 ML |
897 | int arg = 1; |
898 | result = ioctl(port->fd, TCSBRK, &arg); | |
899 | #else | |
2c827b21 | 900 | result = tcdrain(port->fd); |
33fd8804 | 901 | #endif |
2c827b21 ML |
902 | if (result < 0) { |
903 | if (errno == EINTR) { | |
904 | DEBUG("tcdrain() was interrupted"); | |
905 | continue; | |
906 | } else { | |
907 | RETURN_FAIL("tcdrain() failed"); | |
908 | } | |
909 | } else { | |
910 | RETURN_OK(); | |
911 | } | |
912 | } | |
69a3739c | 913 | #endif |
69a3739c ML |
914 | } |
915 | ||
62ed9f80 ML |
916 | #ifdef _WIN32 |
917 | static enum sp_return await_write_completion(struct sp_port *port) | |
918 | { | |
919 | TRACE("%p", port); | |
920 | DWORD bytes_written; | |
921 | BOOL result; | |
922 | ||
923 | /* Wait for previous non-blocking write to complete, if any. */ | |
924 | if (port->writing) { | |
925 | DEBUG("Waiting for previous write to complete"); | |
926 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
927 | port->writing = 0; | |
928 | if (!result) | |
929 | RETURN_FAIL("Previous write failed to complete"); | |
930 | DEBUG("Previous write completed"); | |
931 | } | |
932 | ||
933 | RETURN_OK(); | |
934 | } | |
935 | #endif | |
936 | ||
970f279a | 937 | SP_API enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, |
1b91c6ea | 938 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 939 | { |
1b91c6ea | 940 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
941 | |
942 | CHECK_OPEN_PORT(); | |
943 | ||
944 | if (!buf) | |
945 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
946 | ||
1b91c6ea | 947 | if (timeout_ms) |
7890cef6 | 948 | DEBUG_FMT("Writing %d bytes to port %s, timeout %d ms", |
1b91c6ea | 949 | count, port->name, timeout_ms); |
e3dcf906 | 950 | else |
7890cef6 ML |
951 | DEBUG_FMT("Writing %d bytes to port %s, no timeout", |
952 | count, port->name); | |
e3dcf906 ML |
953 | |
954 | if (count == 0) | |
9caa2e86 | 955 | RETURN_INT(0); |
e3dcf906 ML |
956 | |
957 | #ifdef _WIN32 | |
958 | DWORD bytes_written = 0; | |
e3dcf906 | 959 | |
62ed9f80 | 960 | TRY(await_write_completion(port)); |
e3dcf906 ML |
961 | |
962 | /* Set timeout. */ | |
27a58c05 ML |
963 | if (port->timeouts.WriteTotalTimeoutConstant != timeout_ms) { |
964 | port->timeouts.WriteTotalTimeoutConstant = timeout_ms; | |
965 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
966 | RETURN_FAIL("SetCommTimeouts() failed"); | |
967 | } | |
e3dcf906 | 968 | |
b457865b ML |
969 | /* Reduce count if it exceeds the WriteFile limit. */ |
970 | if (count > WRITEFILE_MAX_SIZE) | |
971 | count = WRITEFILE_MAX_SIZE; | |
972 | ||
e3dcf906 | 973 | /* Start write. */ |
bbe566fe | 974 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl)) { |
e3dcf906 | 975 | DEBUG("Write completed immediately"); |
9caa2e86 | 976 | RETURN_INT(count); |
bbe566fe ML |
977 | } else if (GetLastError() == ERROR_IO_PENDING) { |
978 | DEBUG("Waiting for write to complete"); | |
aee7d691 UH |
979 | if (GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE) == 0) { |
980 | if (GetLastError() == ERROR_SEM_TIMEOUT) { | |
981 | DEBUG("Write timed out"); | |
982 | RETURN_INT(0); | |
983 | } else { | |
984 | RETURN_FAIL("GetOverlappedResult() failed"); | |
985 | } | |
986 | } | |
bbe566fe ML |
987 | DEBUG_FMT("Write completed, %d/%d bytes written", bytes_written, count); |
988 | RETURN_INT(bytes_written); | |
989 | } else { | |
990 | RETURN_FAIL("WriteFile() failed"); | |
e3dcf906 ML |
991 | } |
992 | #else | |
993 | size_t bytes_written = 0; | |
994 | unsigned char *ptr = (unsigned char *) buf; | |
32dbe2d2 | 995 | struct timeout timeout; |
e3dcf906 ML |
996 | fd_set fds; |
997 | int result; | |
998 | ||
32dbe2d2 | 999 | timeout_start(&timeout, timeout_ms); |
e3dcf906 | 1000 | |
772c5861 ML |
1001 | FD_ZERO(&fds); |
1002 | FD_SET(port->fd, &fds); | |
1003 | ||
e3dcf906 | 1004 | /* Loop until we have written the requested number of bytes. */ |
dc422c04 | 1005 | while (bytes_written < count) { |
bd72614f ML |
1006 | |
1007 | if (timeout_check(&timeout)) | |
32dbe2d2 ML |
1008 | break; |
1009 | ||
1010 | result = select(port->fd + 1, NULL, &fds, NULL, timeout_timeval(&timeout)); | |
bd72614f ML |
1011 | |
1012 | timeout_update(&timeout); | |
1013 | ||
63a17c64 ML |
1014 | if (result < 0) { |
1015 | if (errno == EINTR) { | |
1016 | DEBUG("select() call was interrupted, repeating"); | |
1017 | continue; | |
1018 | } else { | |
1019 | RETURN_FAIL("select() failed"); | |
1020 | } | |
1021 | } else if (result == 0) { | |
c3cee38c ML |
1022 | /* Timeout has expired. */ |
1023 | break; | |
e3dcf906 ML |
1024 | } |
1025 | ||
1026 | /* Do write. */ | |
1027 | result = write(port->fd, ptr, count - bytes_written); | |
1028 | ||
1029 | if (result < 0) { | |
1030 | if (errno == EAGAIN) | |
1031 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
1032 | continue; | |
1033 | else | |
1034 | /* This is an actual failure. */ | |
1035 | RETURN_FAIL("write() failed"); | |
1036 | } | |
1037 | ||
1038 | bytes_written += result; | |
1039 | ptr += result; | |
1040 | } | |
1041 | ||
c3cee38c ML |
1042 | if (bytes_written < count) |
1043 | DEBUG("Write timed out"); | |
1044 | ||
9caa2e86 | 1045 | RETURN_INT(bytes_written); |
e3dcf906 ML |
1046 | #endif |
1047 | } | |
1048 | ||
970f279a AJ |
1049 | SP_API enum sp_return sp_nonblocking_write(struct sp_port *port, |
1050 | const void *buf, size_t count) | |
74510d4b | 1051 | { |
c33efc48 ML |
1052 | TRACE("%p, %p, %d", port, buf, count); |
1053 | ||
dec10e31 | 1054 | CHECK_OPEN_PORT(); |
74510d4b ML |
1055 | |
1056 | if (!buf) | |
c33efc48 | 1057 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1058 | |
7890cef6 | 1059 | DEBUG_FMT("Writing up to %d bytes to port %s", count, port->name); |
ea667be7 | 1060 | |
a3cb91f5 | 1061 | if (count == 0) |
9caa2e86 | 1062 | RETURN_INT(0); |
a3cb91f5 | 1063 | |
74510d4b | 1064 | #ifdef _WIN32 |
39df7833 | 1065 | DWORD buf_bytes; |
f92f1f0c | 1066 | |
e3dcf906 ML |
1067 | /* Check whether previous write is complete. */ |
1068 | if (port->writing) { | |
1069 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
1070 | DEBUG("Previous write completed"); | |
1071 | port->writing = 0; | |
1072 | } else { | |
1073 | DEBUG("Previous write not complete"); | |
1074 | /* Can't take a new write until the previous one finishes. */ | |
9caa2e86 | 1075 | RETURN_INT(0); |
a3cb91f5 | 1076 | } |
e3dcf906 | 1077 | } |
a3cb91f5 | 1078 | |
e3dcf906 | 1079 | /* Set timeout. */ |
27a58c05 ML |
1080 | if (port->timeouts.WriteTotalTimeoutConstant != 0) { |
1081 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
1082 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1083 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1084 | } | |
e3dcf906 | 1085 | |
b457865b ML |
1086 | /* Reduce count if it exceeds the WriteFile limit. */ |
1087 | if (count > WRITEFILE_MAX_SIZE) | |
1088 | count = WRITEFILE_MAX_SIZE; | |
1089 | ||
39df7833 ML |
1090 | /* Copy data to our write buffer. */ |
1091 | buf_bytes = min(port->write_buf_size, count); | |
1092 | memcpy(port->write_buf, buf, buf_bytes); | |
1093 | ||
1094 | /* Start asynchronous write. */ | |
1095 | if (WriteFile(port->hdl, port->write_buf, buf_bytes, NULL, &port->write_ovl) == 0) { | |
1096 | if (GetLastError() == ERROR_IO_PENDING) { | |
1097 | if ((port->writing = !HasOverlappedIoCompleted(&port->write_ovl))) | |
1098 | DEBUG("Asynchronous write completed immediately"); | |
1099 | else | |
1100 | DEBUG("Asynchronous write running"); | |
e3dcf906 | 1101 | } else { |
39df7833 ML |
1102 | /* Actual failure of some kind. */ |
1103 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 ML |
1104 | } |
1105 | } | |
1106 | ||
9af8cff3 | 1107 | DEBUG("All bytes written immediately"); |
e3dcf906 | 1108 | |
39df7833 | 1109 | RETURN_INT(buf_bytes); |
74510d4b ML |
1110 | #else |
1111 | /* Returns the number of bytes written, or -1 upon failure. */ | |
1112 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 1113 | |
55ab7e0b ML |
1114 | if (written < 0) { |
1115 | if (errno == EAGAIN) | |
1116 | // Buffer is full, no bytes written. | |
1117 | RETURN_INT(0); | |
1118 | else | |
1119 | RETURN_FAIL("write() failed"); | |
1120 | } else { | |
9caa2e86 | 1121 | RETURN_INT(written); |
55ab7e0b | 1122 | } |
74510d4b ML |
1123 | #endif |
1124 | } | |
1125 | ||
94a314a8 ML |
1126 | #ifdef _WIN32 |
1127 | /* Restart wait operation if buffer was emptied. */ | |
1128 | static enum sp_return restart_wait_if_needed(struct sp_port *port, unsigned int bytes_read) | |
1129 | { | |
8ebfaf89 ML |
1130 | DWORD errors; |
1131 | COMSTAT comstat; | |
94a314a8 | 1132 | |
21ae5ce1 ML |
1133 | if (bytes_read == 0) |
1134 | RETURN_OK(); | |
1135 | ||
8ebfaf89 ML |
1136 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) |
1137 | RETURN_FAIL("ClearCommError() failed"); | |
94a314a8 | 1138 | |
8ebfaf89 | 1139 | if (comstat.cbInQue == 0) |
94a314a8 ML |
1140 | TRY(restart_wait(port)); |
1141 | ||
1142 | RETURN_OK(); | |
1143 | } | |
1144 | #endif | |
1145 | ||
970f279a | 1146 | SP_API enum sp_return sp_blocking_read(struct sp_port *port, void *buf, |
1b91c6ea | 1147 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 1148 | { |
1b91c6ea | 1149 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
1150 | |
1151 | CHECK_OPEN_PORT(); | |
1152 | ||
1153 | if (!buf) | |
1154 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1155 | ||
1b91c6ea | 1156 | if (timeout_ms) |
7890cef6 | 1157 | DEBUG_FMT("Reading %d bytes from port %s, timeout %d ms", |
1b91c6ea | 1158 | count, port->name, timeout_ms); |
e3dcf906 | 1159 | else |
7890cef6 ML |
1160 | DEBUG_FMT("Reading %d bytes from port %s, no timeout", |
1161 | count, port->name); | |
e3dcf906 ML |
1162 | |
1163 | if (count == 0) | |
9caa2e86 | 1164 | RETURN_INT(0); |
e3dcf906 ML |
1165 | |
1166 | #ifdef _WIN32 | |
1167 | DWORD bytes_read = 0; | |
1168 | ||
1169 | /* Set timeout. */ | |
27a58c05 | 1170 | if (port->timeouts.ReadIntervalTimeout != 0 || |
0188a545 | 1171 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1172 | port->timeouts.ReadTotalTimeoutConstant != timeout_ms) { |
1173 | port->timeouts.ReadIntervalTimeout = 0; | |
0188a545 | 1174 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1175 | port->timeouts.ReadTotalTimeoutConstant = timeout_ms; |
1176 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1177 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1178 | } | |
e3dcf906 ML |
1179 | |
1180 | /* Start read. */ | |
bbe566fe | 1181 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl)) { |
e3dcf906 | 1182 | DEBUG("Read completed immediately"); |
6f1186aa | 1183 | bytes_read = count; |
bbe566fe ML |
1184 | } else if (GetLastError() == ERROR_IO_PENDING) { |
1185 | DEBUG("Waiting for read to complete"); | |
27911925 ML |
1186 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
1187 | RETURN_FAIL("GetOverlappedResult() failed"); | |
bbe566fe ML |
1188 | DEBUG_FMT("Read completed, %d/%d bytes read", bytes_read, count); |
1189 | } else { | |
1190 | RETURN_FAIL("ReadFile() failed"); | |
6f1186aa ML |
1191 | } |
1192 | ||
94a314a8 | 1193 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1194 | |
9caa2e86 | 1195 | RETURN_INT(bytes_read); |
6f1186aa | 1196 | |
e3dcf906 ML |
1197 | #else |
1198 | size_t bytes_read = 0; | |
9a7945af | 1199 | unsigned char *ptr = (unsigned char *) buf; |
32dbe2d2 | 1200 | struct timeout timeout; |
e3dcf906 ML |
1201 | fd_set fds; |
1202 | int result; | |
1203 | ||
32dbe2d2 | 1204 | timeout_start(&timeout, timeout_ms); |
e3dcf906 | 1205 | |
772c5861 ML |
1206 | FD_ZERO(&fds); |
1207 | FD_SET(port->fd, &fds); | |
1208 | ||
e3dcf906 | 1209 | /* Loop until we have the requested number of bytes. */ |
dc422c04 | 1210 | while (bytes_read < count) { |
bd72614f ML |
1211 | |
1212 | if (timeout_check(&timeout)) | |
32dbe2d2 ML |
1213 | /* Timeout has expired. */ |
1214 | break; | |
1215 | ||
1216 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_timeval(&timeout)); | |
bd72614f ML |
1217 | |
1218 | timeout_update(&timeout); | |
1219 | ||
63a17c64 ML |
1220 | if (result < 0) { |
1221 | if (errno == EINTR) { | |
1222 | DEBUG("select() call was interrupted, repeating"); | |
1223 | continue; | |
1224 | } else { | |
1225 | RETURN_FAIL("select() failed"); | |
1226 | } | |
1227 | } else if (result == 0) { | |
c3cee38c ML |
1228 | /* Timeout has expired. */ |
1229 | break; | |
e3dcf906 ML |
1230 | } |
1231 | ||
1232 | /* Do read. */ | |
1233 | result = read(port->fd, ptr, count - bytes_read); | |
1234 | ||
1235 | if (result < 0) { | |
1236 | if (errno == EAGAIN) | |
76222ee5 ML |
1237 | /* |
1238 | * This shouldn't happen because we did a | |
1239 | * select() first, but handle anyway. | |
1240 | */ | |
e3dcf906 ML |
1241 | continue; |
1242 | else | |
1243 | /* This is an actual failure. */ | |
1244 | RETURN_FAIL("read() failed"); | |
1245 | } | |
1246 | ||
1247 | bytes_read += result; | |
1248 | ptr += result; | |
1249 | } | |
1250 | ||
c3cee38c ML |
1251 | if (bytes_read < count) |
1252 | DEBUG("Read timed out"); | |
1253 | ||
9caa2e86 | 1254 | RETURN_INT(bytes_read); |
e3dcf906 ML |
1255 | #endif |
1256 | } | |
1257 | ||
e5c2630e ML |
1258 | SP_API enum sp_return sp_blocking_read_next(struct sp_port *port, void *buf, |
1259 | size_t count, unsigned int timeout_ms) | |
1260 | { | |
1261 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); | |
1262 | ||
1263 | CHECK_OPEN_PORT(); | |
1264 | ||
1265 | if (!buf) | |
1266 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1267 | ||
1268 | if (count == 0) | |
1269 | RETURN_ERROR(SP_ERR_ARG, "Zero count"); | |
1270 | ||
1271 | if (timeout_ms) | |
1272 | DEBUG_FMT("Reading next max %d bytes from port %s, timeout %d ms", | |
1273 | count, port->name, timeout_ms); | |
1274 | else | |
1275 | DEBUG_FMT("Reading next max %d bytes from port %s, no timeout", | |
1276 | count, port->name); | |
1277 | ||
1278 | #ifdef _WIN32 | |
1279 | DWORD bytes_read = 0; | |
1280 | ||
1281 | /* If timeout_ms == 0, set maximum timeout. */ | |
1282 | DWORD timeout_val = (timeout_ms == 0 ? MAXDWORD - 1 : timeout_ms); | |
1283 | ||
1284 | /* Set timeout. */ | |
1285 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || | |
1286 | port->timeouts.ReadTotalTimeoutMultiplier != MAXDWORD || | |
1287 | port->timeouts.ReadTotalTimeoutConstant != timeout_val) { | |
1288 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
1289 | port->timeouts.ReadTotalTimeoutMultiplier = MAXDWORD; | |
1290 | port->timeouts.ReadTotalTimeoutConstant = timeout_val; | |
1291 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1292 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1293 | } | |
1294 | ||
1295 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1296 | while (bytes_read == 0) { | |
1297 | /* Start read. */ | |
888fb45d | 1298 | if (ReadFile(port->hdl, buf, count, &bytes_read, &port->read_ovl)) { |
e5c2630e | 1299 | DEBUG("Read completed immediately"); |
e5c2630e ML |
1300 | } else if (GetLastError() == ERROR_IO_PENDING) { |
1301 | DEBUG("Waiting for read to complete"); | |
1302 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) | |
1303 | RETURN_FAIL("GetOverlappedResult() failed"); | |
1304 | if (bytes_read > 0) { | |
1305 | DEBUG("Read completed"); | |
1306 | } else if (timeout_ms > 0) { | |
1307 | DEBUG("Read timed out"); | |
1308 | break; | |
1309 | } else { | |
1310 | DEBUG("Restarting read"); | |
1311 | } | |
1312 | } else { | |
1313 | RETURN_FAIL("ReadFile() failed"); | |
1314 | } | |
1315 | } | |
1316 | ||
1317 | TRY(restart_wait_if_needed(port, bytes_read)); | |
1318 | ||
1319 | RETURN_INT(bytes_read); | |
1320 | ||
1321 | #else | |
1322 | size_t bytes_read = 0; | |
32dbe2d2 | 1323 | struct timeout timeout; |
e5c2630e ML |
1324 | fd_set fds; |
1325 | int result; | |
1326 | ||
32dbe2d2 | 1327 | timeout_start(&timeout, timeout_ms); |
e5c2630e ML |
1328 | |
1329 | FD_ZERO(&fds); | |
1330 | FD_SET(port->fd, &fds); | |
1331 | ||
1332 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1333 | while (bytes_read == 0) { | |
bd72614f ML |
1334 | |
1335 | if (timeout_check(&timeout)) | |
32dbe2d2 ML |
1336 | /* Timeout has expired. */ |
1337 | break; | |
1338 | ||
1339 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_timeval(&timeout)); | |
bd72614f ML |
1340 | |
1341 | timeout_update(&timeout); | |
1342 | ||
e5c2630e ML |
1343 | if (result < 0) { |
1344 | if (errno == EINTR) { | |
1345 | DEBUG("select() call was interrupted, repeating"); | |
1346 | continue; | |
1347 | } else { | |
1348 | RETURN_FAIL("select() failed"); | |
1349 | } | |
1350 | } else if (result == 0) { | |
1351 | /* Timeout has expired. */ | |
1352 | break; | |
1353 | } | |
1354 | ||
1355 | /* Do read. */ | |
1356 | result = read(port->fd, buf, count); | |
1357 | ||
1358 | if (result < 0) { | |
1359 | if (errno == EAGAIN) | |
1360 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
1361 | continue; | |
1362 | else | |
1363 | /* This is an actual failure. */ | |
1364 | RETURN_FAIL("read() failed"); | |
1365 | } | |
1366 | ||
1367 | bytes_read = result; | |
1368 | } | |
1369 | ||
1370 | if (bytes_read == 0) | |
1371 | DEBUG("Read timed out"); | |
1372 | ||
1373 | RETURN_INT(bytes_read); | |
1374 | #endif | |
1375 | } | |
1376 | ||
970f279a AJ |
1377 | SP_API enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, |
1378 | size_t count) | |
74510d4b | 1379 | { |
c33efc48 ML |
1380 | TRACE("%p, %p, %d", port, buf, count); |
1381 | ||
dec10e31 | 1382 | CHECK_OPEN_PORT(); |
74510d4b ML |
1383 | |
1384 | if (!buf) | |
c33efc48 | 1385 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1386 | |
7890cef6 | 1387 | DEBUG_FMT("Reading up to %d bytes from port %s", count, port->name); |
ea667be7 | 1388 | |
74510d4b | 1389 | #ifdef _WIN32 |
e3dcf906 | 1390 | DWORD bytes_read; |
f92f1f0c | 1391 | |
e3dcf906 | 1392 | /* Set timeout. */ |
27a58c05 | 1393 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || |
0188a545 | 1394 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1395 | port->timeouts.ReadTotalTimeoutConstant != 0) { |
1396 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
0188a545 | 1397 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1398 | port->timeouts.ReadTotalTimeoutConstant = 0; |
1399 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1400 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1401 | } | |
e3dcf906 ML |
1402 | |
1403 | /* Do read. */ | |
1404 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
ae2c5825 ML |
1405 | if (GetLastError() != ERROR_IO_PENDING) |
1406 | RETURN_FAIL("ReadFile() failed"); | |
e3dcf906 ML |
1407 | |
1408 | /* Get number of bytes read. */ | |
ae2c5825 | 1409 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, FALSE) == 0) |
1622ef60 | 1410 | RETURN_FAIL("GetOverlappedResult() failed"); |
e3dcf906 | 1411 | |
94a314a8 | 1412 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1413 | |
9caa2e86 | 1414 | RETURN_INT(bytes_read); |
74510d4b ML |
1415 | #else |
1416 | ssize_t bytes_read; | |
f92f1f0c | 1417 | |
74510d4b | 1418 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1419 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1420 | if (errno == EAGAIN) |
1421 | /* No bytes available. */ | |
33d5ff47 ML |
1422 | bytes_read = 0; |
1423 | else | |
1424 | /* This is an actual failure. */ | |
1425 | RETURN_FAIL("read() failed"); | |
1426 | } | |
9caa2e86 | 1427 | RETURN_INT(bytes_read); |
74510d4b ML |
1428 | #endif |
1429 | } | |
1430 | ||
970f279a | 1431 | SP_API enum sp_return sp_input_waiting(struct sp_port *port) |
3353c22f ML |
1432 | { |
1433 | TRACE("%p", port); | |
1434 | ||
1435 | CHECK_OPEN_PORT(); | |
1436 | ||
7890cef6 | 1437 | DEBUG_FMT("Checking input bytes waiting on port %s", port->name); |
3353c22f ML |
1438 | |
1439 | #ifdef _WIN32 | |
1440 | DWORD errors; | |
1441 | COMSTAT comstat; | |
1442 | ||
1443 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1444 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1445 | RETURN_INT(comstat.cbInQue); |
3353c22f ML |
1446 | #else |
1447 | int bytes_waiting; | |
1448 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1449 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
9caa2e86 | 1450 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1451 | #endif |
1452 | } | |
1453 | ||
970f279a | 1454 | SP_API enum sp_return sp_output_waiting(struct sp_port *port) |
3353c22f ML |
1455 | { |
1456 | TRACE("%p", port); | |
1457 | ||
1458 | CHECK_OPEN_PORT(); | |
1459 | ||
7890cef6 | 1460 | DEBUG_FMT("Checking output bytes waiting on port %s", port->name); |
3353c22f ML |
1461 | |
1462 | #ifdef _WIN32 | |
1463 | DWORD errors; | |
1464 | COMSTAT comstat; | |
1465 | ||
1466 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1467 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1468 | RETURN_INT(comstat.cbOutQue); |
3353c22f ML |
1469 | #else |
1470 | int bytes_waiting; | |
1471 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1472 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
9caa2e86 | 1473 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1474 | #endif |
1475 | } | |
1476 | ||
970f279a | 1477 | SP_API enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
6f1186aa ML |
1478 | { |
1479 | struct sp_event_set *result; | |
1480 | ||
1481 | TRACE("%p", result_ptr); | |
1482 | ||
1483 | if (!result_ptr) | |
1484 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1485 | ||
1486 | *result_ptr = NULL; | |
1487 | ||
1488 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1489 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1490 | ||
1491 | memset(result, 0, sizeof(struct sp_event_set)); | |
1492 | ||
1493 | *result_ptr = result; | |
1494 | ||
1495 | RETURN_OK(); | |
1496 | } | |
1497 | ||
1498 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1499 | event_handle handle, enum sp_event mask) | |
1500 | { | |
1501 | void *new_handles; | |
1502 | enum sp_event *new_masks; | |
1503 | ||
1504 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1505 | ||
1506 | if (!(new_handles = realloc(event_set->handles, | |
1507 | sizeof(event_handle) * (event_set->count + 1)))) | |
dc422c04 | 1508 | RETURN_ERROR(SP_ERR_MEM, "Handle array realloc() failed"); |
6f1186aa | 1509 | |
ac323d80 UH |
1510 | event_set->handles = new_handles; |
1511 | ||
6f1186aa | 1512 | if (!(new_masks = realloc(event_set->masks, |
ac323d80 | 1513 | sizeof(enum sp_event) * (event_set->count + 1)))) |
dc422c04 | 1514 | RETURN_ERROR(SP_ERR_MEM, "Mask array realloc() failed"); |
6f1186aa | 1515 | |
6f1186aa ML |
1516 | event_set->masks = new_masks; |
1517 | ||
1518 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1519 | event_set->masks[event_set->count] = mask; | |
1520 | ||
1521 | event_set->count++; | |
1522 | ||
1523 | RETURN_OK(); | |
1524 | } | |
1525 | ||
970f279a | 1526 | SP_API enum sp_return sp_add_port_events(struct sp_event_set *event_set, |
6f1186aa ML |
1527 | const struct sp_port *port, enum sp_event mask) |
1528 | { | |
1529 | TRACE("%p, %p, %d", event_set, port, mask); | |
1530 | ||
1531 | if (!event_set) | |
1532 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1533 | ||
1534 | if (!port) | |
1535 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1536 | ||
1537 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1538 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1539 | ||
1540 | if (!mask) | |
1541 | RETURN_OK(); | |
1542 | ||
1543 | #ifdef _WIN32 | |
1544 | enum sp_event handle_mask; | |
1545 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1546 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1547 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1548 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1549 | #else | |
1550 | TRY(add_handle(event_set, port->fd, mask)); | |
1551 | #endif | |
1552 | ||
1553 | RETURN_OK(); | |
1554 | } | |
1555 | ||
970f279a | 1556 | SP_API void sp_free_event_set(struct sp_event_set *event_set) |
6f1186aa ML |
1557 | { |
1558 | TRACE("%p", event_set); | |
1559 | ||
1560 | if (!event_set) { | |
1561 | DEBUG("Null event set"); | |
1562 | RETURN(); | |
1563 | } | |
1564 | ||
1565 | DEBUG("Freeing event set"); | |
1566 | ||
1567 | if (event_set->handles) | |
1568 | free(event_set->handles); | |
1569 | if (event_set->masks) | |
1570 | free(event_set->masks); | |
1571 | ||
1572 | free(event_set); | |
1573 | ||
1574 | RETURN(); | |
1575 | } | |
1576 | ||
970f279a | 1577 | SP_API enum sp_return sp_wait(struct sp_event_set *event_set, |
1b91c6ea | 1578 | unsigned int timeout_ms) |
6f1186aa | 1579 | { |
1b91c6ea | 1580 | TRACE("%p, %d", event_set, timeout_ms); |
6f1186aa ML |
1581 | |
1582 | if (!event_set) | |
1583 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1584 | ||
1585 | #ifdef _WIN32 | |
1586 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1b91c6ea | 1587 | timeout_ms ? timeout_ms : INFINITE) == WAIT_FAILED) |
6f1186aa ML |
1588 | RETURN_FAIL("WaitForMultipleObjects() failed"); |
1589 | ||
1590 | RETURN_OK(); | |
1591 | #else | |
32dbe2d2 | 1592 | struct timeout timeout; |
bd72614f | 1593 | int result; |
6f1186aa ML |
1594 | struct pollfd *pollfds; |
1595 | unsigned int i; | |
1596 | ||
1597 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1598 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1599 | ||
1600 | for (i = 0; i < event_set->count; i++) { | |
81243567 | 1601 | pollfds[i].fd = ((int *)event_set->handles)[i]; |
6f1186aa ML |
1602 | pollfds[i].events = 0; |
1603 | pollfds[i].revents = 0; | |
1604 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1605 | pollfds[i].events |= POLLIN; | |
1606 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1607 | pollfds[i].events |= POLLOUT; | |
1608 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1609 | pollfds[i].events |= POLLERR; | |
1610 | } | |
1611 | ||
32dbe2d2 | 1612 | timeout_start(&timeout, timeout_ms); |
08eb25f5 | 1613 | timeout_limit(&timeout, INT_MAX); |
6f1186aa ML |
1614 | |
1615 | /* Loop until an event occurs. */ | |
dc422c04 | 1616 | while (1) { |
bd72614f ML |
1617 | |
1618 | if (timeout_check(&timeout)) { | |
32dbe2d2 ML |
1619 | DEBUG("Wait timed out"); |
1620 | break; | |
6f1186aa ML |
1621 | } |
1622 | ||
9d1ca7c8 | 1623 | result = poll(pollfds, event_set->count, timeout_remaining_ms(&timeout) || -1); |
bd72614f ML |
1624 | |
1625 | timeout_update(&timeout); | |
6f1186aa ML |
1626 | |
1627 | if (result < 0) { | |
1628 | if (errno == EINTR) { | |
1629 | DEBUG("poll() call was interrupted, repeating"); | |
1630 | continue; | |
1631 | } else { | |
1632 | free(pollfds); | |
1633 | RETURN_FAIL("poll() failed"); | |
1634 | } | |
1635 | } else if (result == 0) { | |
1636 | DEBUG("poll() timed out"); | |
32dbe2d2 | 1637 | if (!timeout.overflow) |
127d8d0c | 1638 | break; |
6f1186aa ML |
1639 | } else { |
1640 | DEBUG("poll() completed"); | |
1641 | break; | |
1642 | } | |
1643 | } | |
1644 | ||
1645 | free(pollfds); | |
1646 | RETURN_OK(); | |
1647 | #endif | |
1648 | } | |
1649 | ||
5cea279a | 1650 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1651 | static enum sp_return get_baudrate(int fd, int *baudrate) |
1652 | { | |
1653 | void *data; | |
1654 | ||
c33efc48 ML |
1655 | TRACE("%d, %p", fd, baudrate); |
1656 | ||
ea667be7 ML |
1657 | DEBUG("Getting baud rate"); |
1658 | ||
7a6d2196 | 1659 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1660 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1661 | |
8d43110a ML |
1662 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1663 | free(data); | |
dc422c04 | 1664 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1665 | } |
7a6d2196 ML |
1666 | |
1667 | *baudrate = get_termios_speed(data); | |
1668 | ||
8d43110a ML |
1669 | free(data); |
1670 | ||
c33efc48 | 1671 | RETURN_OK(); |
7a6d2196 ML |
1672 | } |
1673 | ||
1674 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1675 | { | |
1676 | void *data; | |
1677 | ||
c33efc48 ML |
1678 | TRACE("%d, %d", fd, baudrate); |
1679 | ||
ea667be7 ML |
1680 | DEBUG("Getting baud rate"); |
1681 | ||
7a6d2196 | 1682 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1683 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1684 | |
8d43110a ML |
1685 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1686 | free(data); | |
dc422c04 | 1687 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1688 | } |
7a6d2196 | 1689 | |
ea667be7 ML |
1690 | DEBUG("Setting baud rate"); |
1691 | ||
7a6d2196 ML |
1692 | set_termios_speed(data, baudrate); |
1693 | ||
8d43110a ML |
1694 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1695 | free(data); | |
dc422c04 | 1696 | RETURN_FAIL("Setting termios failed"); |
8d43110a ML |
1697 | } |
1698 | ||
1699 | free(data); | |
7a6d2196 | 1700 | |
c33efc48 | 1701 | RETURN_OK(); |
7a6d2196 | 1702 | } |
5cea279a | 1703 | #endif /* USE_TERMIOS_SPEED */ |
40978c2b ML |
1704 | |
1705 | #ifdef USE_TERMIOX | |
bd791fe1 | 1706 | static enum sp_return get_flow(int fd, struct port_data *data) |
40978c2b | 1707 | { |
bd791fe1 | 1708 | void *termx; |
40978c2b | 1709 | |
bd791fe1 | 1710 | TRACE("%d, %p", fd, data); |
c33efc48 | 1711 | |
ea667be7 ML |
1712 | DEBUG("Getting advanced flow control"); |
1713 | ||
bd791fe1 | 1714 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1715 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1716 | |
bd791fe1 ML |
1717 | if (ioctl(fd, TCGETX, termx) < 0) { |
1718 | free(termx); | |
dc422c04 | 1719 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1720 | } |
40978c2b | 1721 | |
bd791fe1 ML |
1722 | get_termiox_flow(termx, &data->rts_flow, &data->cts_flow, |
1723 | &data->dtr_flow, &data->dsr_flow); | |
40978c2b | 1724 | |
bd791fe1 | 1725 | free(termx); |
8d43110a | 1726 | |
c33efc48 | 1727 | RETURN_OK(); |
40978c2b ML |
1728 | } |
1729 | ||
bd791fe1 | 1730 | static enum sp_return set_flow(int fd, struct port_data *data) |
40978c2b | 1731 | { |
bd791fe1 | 1732 | void *termx; |
40978c2b | 1733 | |
bd791fe1 | 1734 | TRACE("%d, %p", fd, data); |
c33efc48 | 1735 | |
ea667be7 ML |
1736 | DEBUG("Getting advanced flow control"); |
1737 | ||
bd791fe1 | 1738 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1739 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1740 | |
bd791fe1 ML |
1741 | if (ioctl(fd, TCGETX, termx) < 0) { |
1742 | free(termx); | |
dc422c04 | 1743 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1744 | } |
40978c2b | 1745 | |
ea667be7 ML |
1746 | DEBUG("Setting advanced flow control"); |
1747 | ||
bd791fe1 ML |
1748 | set_termiox_flow(termx, data->rts_flow, data->cts_flow, |
1749 | data->dtr_flow, data->dsr_flow); | |
40978c2b | 1750 | |
bd791fe1 ML |
1751 | if (ioctl(fd, TCSETX, termx) < 0) { |
1752 | free(termx); | |
dc422c04 | 1753 | RETURN_FAIL("Setting termiox failed"); |
8d43110a ML |
1754 | } |
1755 | ||
bd791fe1 | 1756 | free(termx); |
40978c2b | 1757 | |
c33efc48 | 1758 | RETURN_OK(); |
40978c2b ML |
1759 | } |
1760 | #endif /* USE_TERMIOX */ | |
7a6d2196 | 1761 | |
eb6ed20f ML |
1762 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1763 | struct sp_port_config *config) | |
8094e4a0 | 1764 | { |
da2748bf | 1765 | unsigned int i; |
cbf628c7 | 1766 | |
c33efc48 ML |
1767 | TRACE("%p, %p, %p", port, data, config); |
1768 | ||
7890cef6 | 1769 | DEBUG_FMT("Getting configuration for port %s", port->name); |
ea667be7 | 1770 | |
8094e4a0 | 1771 | #ifdef _WIN32 |
e33ab9aa | 1772 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1773 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1774 | |
067417af | 1775 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1776 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1777 | config->baudrate = std_baudrates[i].value; |
1778 | break; | |
1779 | } | |
1780 | } | |
1781 | ||
1782 | if (i == NUM_STD_BAUDRATES) | |
1783 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1784 | config->baudrate = data->dcb.BaudRate; |
067417af | 1785 | |
e33ab9aa | 1786 | config->bits = data->dcb.ByteSize; |
067417af | 1787 | |
e33ab9aa ML |
1788 | if (data->dcb.fParity) |
1789 | switch (data->dcb.Parity) { | |
067417af ML |
1790 | case NOPARITY: |
1791 | config->parity = SP_PARITY_NONE; | |
1792 | break; | |
e432ce60 ML |
1793 | case ODDPARITY: |
1794 | config->parity = SP_PARITY_ODD; | |
1795 | break; | |
067417af ML |
1796 | case EVENPARITY: |
1797 | config->parity = SP_PARITY_EVEN; | |
1798 | break; | |
e432ce60 ML |
1799 | case MARKPARITY: |
1800 | config->parity = SP_PARITY_MARK; | |
1801 | break; | |
1802 | case SPACEPARITY: | |
1803 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1804 | break; |
1805 | default: | |
1806 | config->parity = -1; | |
1807 | } | |
1808 | else | |
1809 | config->parity = SP_PARITY_NONE; | |
1810 | ||
e33ab9aa | 1811 | switch (data->dcb.StopBits) { |
067417af ML |
1812 | case ONESTOPBIT: |
1813 | config->stopbits = 1; | |
1814 | break; | |
1815 | case TWOSTOPBITS: | |
1816 | config->stopbits = 2; | |
1817 | break; | |
1818 | default: | |
1819 | config->stopbits = -1; | |
1820 | } | |
1821 | ||
e33ab9aa | 1822 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1823 | case RTS_CONTROL_DISABLE: |
1824 | config->rts = SP_RTS_OFF; | |
1825 | break; | |
1826 | case RTS_CONTROL_ENABLE: | |
1827 | config->rts = SP_RTS_ON; | |
1828 | break; | |
1829 | case RTS_CONTROL_HANDSHAKE: | |
1830 | config->rts = SP_RTS_FLOW_CONTROL; | |
1831 | break; | |
1832 | default: | |
1833 | config->rts = -1; | |
067417af ML |
1834 | } |
1835 | ||
e33ab9aa | 1836 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1837 | |
e33ab9aa | 1838 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1839 | case DTR_CONTROL_DISABLE: |
1840 | config->dtr = SP_DTR_OFF; | |
1841 | break; | |
1842 | case DTR_CONTROL_ENABLE: | |
1843 | config->dtr = SP_DTR_ON; | |
1844 | break; | |
1845 | case DTR_CONTROL_HANDSHAKE: | |
1846 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1847 | break; | |
1848 | default: | |
1849 | config->dtr = -1; | |
067417af ML |
1850 | } |
1851 | ||
e33ab9aa ML |
1852 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1853 | ||
c6754b45 ML |
1854 | if (data->dcb.fInX) { |
1855 | if (data->dcb.fOutX) | |
1856 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1857 | else | |
1858 | config->xon_xoff = SP_XONXOFF_IN; | |
1859 | } else { | |
1860 | if (data->dcb.fOutX) | |
1861 | config->xon_xoff = SP_XONXOFF_OUT; | |
1862 | else | |
1863 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1864 | } | |
1865 | ||
e33ab9aa ML |
1866 | #else // !_WIN32 |
1867 | ||
1868 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1869 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1870 | |
1871 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1872 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1873 | |
1874 | #ifdef USE_TERMIOX | |
bd791fe1 | 1875 | int ret = get_flow(port->fd, data); |
68ec29db ML |
1876 | |
1877 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1878 | data->termiox_supported = 0; | |
1879 | else if (ret < 0) | |
c33efc48 | 1880 | RETURN_CODEVAL(ret); |
68ec29db ML |
1881 | else |
1882 | data->termiox_supported = 1; | |
1883 | #else | |
1884 | data->termiox_supported = 0; | |
40978c2b ML |
1885 | #endif |
1886 | ||
067417af | 1887 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1888 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1889 | config->baudrate = std_baudrates[i].value; |
1890 | break; | |
1891 | } | |
1892 | } | |
1893 | ||
31b3a8f5 MH |
1894 | if (i == NUM_STD_BAUDRATES) { |
1895 | #ifdef __APPLE__ | |
1896 | config->baudrate = (int)data->term.c_ispeed; | |
5cea279a | 1897 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1898 | TRY(get_baudrate(port->fd, &config->baudrate)); |
31b3a8f5 | 1899 | #else |
067417af | 1900 | config->baudrate = -1; |
31b3a8f5 MH |
1901 | #endif |
1902 | } | |
067417af | 1903 | |
e33ab9aa | 1904 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1905 | case CS8: |
1906 | config->bits = 8; | |
1907 | break; | |
1908 | case CS7: | |
1909 | config->bits = 7; | |
1910 | break; | |
1911 | case CS6: | |
1912 | config->bits = 6; | |
1913 | break; | |
1914 | case CS5: | |
1915 | config->bits = 5; | |
1916 | break; | |
1917 | default: | |
1918 | config->bits = -1; | |
1919 | } | |
1920 | ||
e33ab9aa | 1921 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1922 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1923 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1924 | config->parity = -1; |
c3e05092 | 1925 | #ifdef CMSPAR |
e432ce60 ML |
1926 | else if (data->term.c_cflag & CMSPAR) |
1927 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1928 | #endif |
067417af | 1929 | else |
e33ab9aa | 1930 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1931 | |
e33ab9aa | 1932 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1933 | |
e33ab9aa | 1934 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1935 | config->rts = SP_RTS_FLOW_CONTROL; |
1936 | config->cts = SP_CTS_FLOW_CONTROL; | |
1937 | } else { | |
bd791fe1 | 1938 | if (data->termiox_supported && data->rts_flow) |
40978c2b ML |
1939 | config->rts = SP_RTS_FLOW_CONTROL; |
1940 | else | |
1941 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1942 | ||
bd791fe1 | 1943 | config->cts = (data->termiox_supported && data->cts_flow) ? |
68ec29db | 1944 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af ML |
1945 | } |
1946 | ||
bd791fe1 | 1947 | if (data->termiox_supported && data->dtr_flow) |
40978c2b ML |
1948 | config->dtr = SP_DTR_FLOW_CONTROL; |
1949 | else | |
1950 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1951 | ||
bd791fe1 | 1952 | config->dsr = (data->termiox_supported && data->dsr_flow) ? |
68ec29db | 1953 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
705bdc69 | 1954 | |
e29b93a5 ML |
1955 | if (data->term.c_iflag & IXOFF) { |
1956 | if (data->term.c_iflag & IXON) | |
1957 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1958 | else | |
1959 | config->xon_xoff = SP_XONXOFF_IN; | |
1960 | } else { | |
1961 | if (data->term.c_iflag & IXON) | |
1962 | config->xon_xoff = SP_XONXOFF_OUT; | |
1963 | else | |
1964 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1965 | } | |
067417af ML |
1966 | #endif |
1967 | ||
c33efc48 | 1968 | RETURN_OK(); |
067417af ML |
1969 | } |
1970 | ||
7a6d2196 | 1971 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1972 | const struct sp_port_config *config) |
18fc2dd1 | 1973 | { |
e33ab9aa | 1974 | unsigned int i; |
31b3a8f5 MH |
1975 | #ifdef __APPLE__ |
1976 | BAUD_TYPE baud_nonstd; | |
1977 | ||
1978 | baud_nonstd = B0; | |
1979 | #endif | |
5cea279a | 1980 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1981 | int baud_nonstd = 0; |
1982 | #endif | |
18fc2dd1 | 1983 | |
c33efc48 ML |
1984 | TRACE("%p, %p, %p", port, data, config); |
1985 | ||
7890cef6 | 1986 | DEBUG_FMT("Setting configuration for port %s", port->name); |
ea667be7 | 1987 | |
e33ab9aa | 1988 | #ifdef _WIN32 |
6bd6a8b5 ML |
1989 | |
1990 | TRY(await_write_completion(port)); | |
1991 | ||
eac329d2 | 1992 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1993 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1994 | if (config->baudrate == std_baudrates[i].value) { | |
1995 | data->dcb.BaudRate = std_baudrates[i].index; | |
1996 | break; | |
1997 | } | |
1998 | } | |
18fc2dd1 | 1999 | |
e33ab9aa ML |
2000 | if (i == NUM_STD_BAUDRATES) |
2001 | data->dcb.BaudRate = config->baudrate; | |
39df7833 ML |
2002 | |
2003 | /* Allocate write buffer for 50ms of data at baud rate. */ | |
2004 | port->write_buf_size = max(config->baudrate / (8 * 20), 1); | |
2005 | port->write_buf = realloc(port->write_buf, | |
2006 | port->write_buf_size); | |
2007 | ||
2008 | if (!port->write_buf) | |
2009 | RETURN_ERROR(SP_ERR_MEM, "Allocating write buffer failed"); | |
e33ab9aa | 2010 | } |
18fc2dd1 | 2011 | |
e33ab9aa ML |
2012 | if (config->bits >= 0) |
2013 | data->dcb.ByteSize = config->bits; | |
2014 | ||
2015 | if (config->parity >= 0) { | |
2016 | switch (config->parity) { | |
e33ab9aa ML |
2017 | case SP_PARITY_NONE: |
2018 | data->dcb.Parity = NOPARITY; | |
2019 | break; | |
e432ce60 ML |
2020 | case SP_PARITY_ODD: |
2021 | data->dcb.Parity = ODDPARITY; | |
2022 | break; | |
e33ab9aa ML |
2023 | case SP_PARITY_EVEN: |
2024 | data->dcb.Parity = EVENPARITY; | |
2025 | break; | |
e432ce60 ML |
2026 | case SP_PARITY_MARK: |
2027 | data->dcb.Parity = MARKPARITY; | |
2028 | break; | |
2029 | case SP_PARITY_SPACE: | |
2030 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
2031 | break; |
2032 | default: | |
c33efc48 | 2033 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 2034 | } |
18fc2dd1 ML |
2035 | } |
2036 | ||
e33ab9aa ML |
2037 | if (config->stopbits >= 0) { |
2038 | switch (config->stopbits) { | |
2039 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
2040 | case 1: | |
2041 | data->dcb.StopBits = ONESTOPBIT; | |
2042 | break; | |
2043 | case 2: | |
2044 | data->dcb.StopBits = TWOSTOPBITS; | |
2045 | break; | |
2046 | default: | |
c33efc48 | 2047 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
2048 | } |
2049 | } | |
2050 | ||
2051 | if (config->rts >= 0) { | |
2052 | switch (config->rts) { | |
2053 | case SP_RTS_OFF: | |
2054 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
2055 | break; | |
2056 | case SP_RTS_ON: | |
2057 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
2058 | break; | |
2059 | case SP_RTS_FLOW_CONTROL: | |
2060 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
2061 | break; | |
2062 | default: | |
c33efc48 | 2063 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
2064 | } |
2065 | } | |
2066 | ||
2067 | if (config->cts >= 0) { | |
2068 | switch (config->cts) { | |
2069 | case SP_CTS_IGNORE: | |
2070 | data->dcb.fOutxCtsFlow = FALSE; | |
2071 | break; | |
2072 | case SP_CTS_FLOW_CONTROL: | |
2073 | data->dcb.fOutxCtsFlow = TRUE; | |
2074 | break; | |
2075 | default: | |
c33efc48 | 2076 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
2077 | } |
2078 | } | |
2079 | ||
2080 | if (config->dtr >= 0) { | |
2081 | switch (config->dtr) { | |
2082 | case SP_DTR_OFF: | |
2083 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
2084 | break; | |
2085 | case SP_DTR_ON: | |
2086 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
2087 | break; | |
2088 | case SP_DTR_FLOW_CONTROL: | |
2089 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
2090 | break; | |
2091 | default: | |
c33efc48 | 2092 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
2093 | } |
2094 | } | |
2095 | ||
2096 | if (config->dsr >= 0) { | |
2097 | switch (config->dsr) { | |
2098 | case SP_DSR_IGNORE: | |
2099 | data->dcb.fOutxDsrFlow = FALSE; | |
2100 | break; | |
2101 | case SP_DSR_FLOW_CONTROL: | |
2102 | data->dcb.fOutxDsrFlow = TRUE; | |
2103 | break; | |
2104 | default: | |
c33efc48 | 2105 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 2106 | } |
18fc2dd1 ML |
2107 | } |
2108 | ||
e33ab9aa ML |
2109 | if (config->xon_xoff >= 0) { |
2110 | switch (config->xon_xoff) { | |
2111 | case SP_XONXOFF_DISABLED: | |
2112 | data->dcb.fInX = FALSE; | |
2113 | data->dcb.fOutX = FALSE; | |
2114 | break; | |
2115 | case SP_XONXOFF_IN: | |
2116 | data->dcb.fInX = TRUE; | |
2117 | data->dcb.fOutX = FALSE; | |
2118 | break; | |
2119 | case SP_XONXOFF_OUT: | |
2120 | data->dcb.fInX = FALSE; | |
2121 | data->dcb.fOutX = TRUE; | |
2122 | break; | |
2123 | case SP_XONXOFF_INOUT: | |
2124 | data->dcb.fInX = TRUE; | |
2125 | data->dcb.fOutX = TRUE; | |
2126 | break; | |
2127 | default: | |
c33efc48 | 2128 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2129 | } |
2130 | } | |
2131 | ||
2132 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 2133 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 2134 | |
31b3a8f5 | 2135 | #else /* !_WIN32 */ |
e33ab9aa | 2136 | |
7a6d2196 ML |
2137 | int controlbits; |
2138 | ||
eac329d2 | 2139 | if (config->baudrate >= 0) { |
e33ab9aa ML |
2140 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
2141 | if (config->baudrate == std_baudrates[i].value) { | |
2142 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 2143 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
2144 | |
2145 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 2146 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
2147 | break; |
2148 | } | |
2149 | } | |
2150 | ||
31b3a8f5 MH |
2151 | /* Non-standard baud rate */ |
2152 | if (i == NUM_STD_BAUDRATES) { | |
2153 | #ifdef __APPLE__ | |
24abdb68 | 2154 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 2155 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 2156 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2157 | baud_nonstd = config->baudrate; |
5cea279a | 2158 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 2159 | baud_nonstd = 1; |
31b3a8f5 | 2160 | #else |
c33efc48 | 2161 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
2162 | #endif |
2163 | } | |
e33ab9aa ML |
2164 | } |
2165 | ||
2166 | if (config->bits >= 0) { | |
2167 | data->term.c_cflag &= ~CSIZE; | |
2168 | switch (config->bits) { | |
2169 | case 8: | |
2170 | data->term.c_cflag |= CS8; | |
2171 | break; | |
2172 | case 7: | |
2173 | data->term.c_cflag |= CS7; | |
2174 | break; | |
2175 | case 6: | |
2176 | data->term.c_cflag |= CS6; | |
2177 | break; | |
23922313 UH |
2178 | case 5: |
2179 | data->term.c_cflag |= CS5; | |
2180 | break; | |
e33ab9aa | 2181 | default: |
c33efc48 | 2182 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
2183 | } |
2184 | } | |
2185 | ||
2186 | if (config->parity >= 0) { | |
2187 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
2188 | data->term.c_cflag &= ~(PARENB | PARODD); |
2189 | #ifdef CMSPAR | |
2190 | data->term.c_cflag &= ~CMSPAR; | |
2191 | #endif | |
e33ab9aa ML |
2192 | switch (config->parity) { |
2193 | case SP_PARITY_NONE: | |
2194 | data->term.c_iflag |= IGNPAR; | |
2195 | break; | |
2196 | case SP_PARITY_EVEN: | |
2197 | data->term.c_cflag |= PARENB; | |
2198 | break; | |
2199 | case SP_PARITY_ODD: | |
2200 | data->term.c_cflag |= PARENB | PARODD; | |
2201 | break; | |
afb518f0 | 2202 | #ifdef CMSPAR |
e432ce60 | 2203 | case SP_PARITY_MARK: |
c3e05092 | 2204 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 2205 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
2206 | break; |
2207 | case SP_PARITY_SPACE: | |
c3e05092 | 2208 | data->term.c_cflag |= PARENB; |
c3e05092 | 2209 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 2210 | break; |
afb518f0 ML |
2211 | #else |
2212 | case SP_PARITY_MARK: | |
2213 | case SP_PARITY_SPACE: | |
2214 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
2215 | #endif | |
e33ab9aa | 2216 | default: |
c33efc48 | 2217 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
2218 | } |
2219 | } | |
2220 | ||
2221 | if (config->stopbits >= 0) { | |
2222 | data->term.c_cflag &= ~CSTOPB; | |
2223 | switch (config->stopbits) { | |
2224 | case 1: | |
2225 | data->term.c_cflag &= ~CSTOPB; | |
2226 | break; | |
2227 | case 2: | |
2228 | data->term.c_cflag |= CSTOPB; | |
2229 | break; | |
2230 | default: | |
c33efc48 | 2231 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
2232 | } |
2233 | } | |
2234 | ||
eac329d2 | 2235 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db | 2236 | if (data->termiox_supported) { |
bd791fe1 | 2237 | data->rts_flow = data->cts_flow = 0; |
68ec29db ML |
2238 | switch (config->rts) { |
2239 | case SP_RTS_OFF: | |
2240 | case SP_RTS_ON: | |
2241 | controlbits = TIOCM_RTS; | |
2242 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2243 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
2244 | break; |
2245 | case SP_RTS_FLOW_CONTROL: | |
bd791fe1 | 2246 | data->rts_flow = 1; |
68ec29db ML |
2247 | break; |
2248 | default: | |
2249 | break; | |
e33ab9aa | 2250 | } |
68ec29db | 2251 | if (config->cts == SP_CTS_FLOW_CONTROL) |
bd791fe1 | 2252 | data->cts_flow = 1; |
e33ab9aa | 2253 | |
bd791fe1 | 2254 | if (data->rts_flow && data->cts_flow) |
e33ab9aa | 2255 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
2256 | else |
2257 | data->term.c_iflag &= ~CRTSCTS; | |
2258 | } else { | |
2259 | /* Asymmetric use of RTS/CTS not supported. */ | |
2260 | if (data->term.c_iflag & CRTSCTS) { | |
2261 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
2262 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
2263 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 2264 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
2265 | } |
2266 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
2267 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 2268 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 2269 | } |
e33ab9aa | 2270 | } else { |
68ec29db ML |
2271 | /* Flow control can only be enabled for both RTS & CTS together. */ |
2272 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
2273 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 2274 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
2275 | } |
2276 | ||
2277 | if (config->rts >= 0) { | |
2278 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
2279 | data->term.c_iflag |= CRTSCTS; | |
2280 | } else { | |
2281 | controlbits = TIOCM_RTS; | |
2282 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
2283 | &controlbits) < 0) | |
c33efc48 | 2284 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 2285 | } |
e33ab9aa ML |
2286 | } |
2287 | } | |
2288 | } | |
2289 | ||
eac329d2 | 2290 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db | 2291 | if (data->termiox_supported) { |
bd791fe1 | 2292 | data->dtr_flow = data->dsr_flow = 0; |
68ec29db ML |
2293 | switch (config->dtr) { |
2294 | case SP_DTR_OFF: | |
2295 | case SP_DTR_ON: | |
2296 | controlbits = TIOCM_DTR; | |
2297 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2298 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
2299 | break; |
2300 | case SP_DTR_FLOW_CONTROL: | |
bd791fe1 | 2301 | data->dtr_flow = 1; |
68ec29db ML |
2302 | break; |
2303 | default: | |
2304 | break; | |
2305 | } | |
2306 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
bd791fe1 | 2307 | data->dsr_flow = 1; |
68ec29db ML |
2308 | } else { |
2309 | /* DTR/DSR flow control not supported. */ | |
2310 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 2311 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 2312 | |
68ec29db ML |
2313 | if (config->dtr >= 0) { |
2314 | controlbits = TIOCM_DTR; | |
2315 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
2316 | &controlbits) < 0) | |
c33efc48 | 2317 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 2318 | } |
e33ab9aa ML |
2319 | } |
2320 | } | |
2321 | ||
2322 | if (config->xon_xoff >= 0) { | |
2323 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
2324 | switch (config->xon_xoff) { | |
2325 | case SP_XONXOFF_DISABLED: | |
2326 | break; | |
2327 | case SP_XONXOFF_IN: | |
2328 | data->term.c_iflag |= IXOFF; | |
2329 | break; | |
2330 | case SP_XONXOFF_OUT: | |
2331 | data->term.c_iflag |= IXON | IXANY; | |
2332 | break; | |
2333 | case SP_XONXOFF_INOUT: | |
2334 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
2335 | break; | |
2336 | default: | |
c33efc48 | 2337 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2338 | } |
2339 | } | |
2340 | ||
3f5c06d0 | 2341 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 2342 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
2343 | |
2344 | #ifdef __APPLE__ | |
2345 | if (baud_nonstd != B0) { | |
2346 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 2347 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
dc422c04 UH |
2348 | /* |
2349 | * Set baud rates in data->term to correct, but incompatible | |
2350 | * with tcsetattr() value, same as delivered by tcgetattr(). | |
2351 | */ | |
31b3a8f5 | 2352 | if (cfsetspeed(&data->term, baud_nonstd) < 0) |
c33efc48 | 2353 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2354 | } |
7a6d2196 | 2355 | #elif defined(__linux__) |
5cea279a | 2356 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
2357 | if (baud_nonstd) |
2358 | TRY(set_baudrate(port->fd, config->baudrate)); | |
5cea279a | 2359 | #endif |
40978c2b | 2360 | #ifdef USE_TERMIOX |
68ec29db | 2361 | if (data->termiox_supported) |
bd791fe1 | 2362 | TRY(set_flow(port->fd, data)); |
40978c2b | 2363 | #endif |
7a6d2196 | 2364 | #endif |
31b3a8f5 MH |
2365 | |
2366 | #endif /* !_WIN32 */ | |
e33ab9aa | 2367 | |
c33efc48 | 2368 | RETURN_OK(); |
e33ab9aa ML |
2369 | } |
2370 | ||
970f279a | 2371 | SP_API enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
9b1502ef | 2372 | { |
59131d60 | 2373 | struct sp_port_config *config; |
9b1502ef | 2374 | |
00d8c56d UH |
2375 | TRACE("%p", config_ptr); |
2376 | ||
9b1502ef ML |
2377 | if (!config_ptr) |
2378 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
2379 | ||
59131d60 ML |
2380 | *config_ptr = NULL; |
2381 | ||
2382 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
dc422c04 | 2383 | RETURN_ERROR(SP_ERR_MEM, "Config malloc failed"); |
9b1502ef | 2384 | |
59131d60 ML |
2385 | config->baudrate = -1; |
2386 | config->bits = -1; | |
2387 | config->parity = -1; | |
2388 | config->stopbits = -1; | |
2389 | config->rts = -1; | |
2390 | config->cts = -1; | |
2391 | config->dtr = -1; | |
2392 | config->dsr = -1; | |
2393 | ||
2394 | *config_ptr = config; | |
2395 | ||
9b1502ef ML |
2396 | RETURN_OK(); |
2397 | } | |
2398 | ||
970f279a | 2399 | SP_API void sp_free_config(struct sp_port_config *config) |
9b1502ef ML |
2400 | { |
2401 | TRACE("%p", config); | |
2402 | ||
2403 | if (!config) | |
2404 | DEBUG("Null config"); | |
2405 | else | |
2406 | free(config); | |
2407 | ||
2408 | RETURN(); | |
2409 | } | |
2410 | ||
970f279a AJ |
2411 | SP_API enum sp_return sp_get_config(struct sp_port *port, |
2412 | struct sp_port_config *config) | |
70cd37de ML |
2413 | { |
2414 | struct port_data data; | |
2415 | ||
2416 | TRACE("%p, %p", port, config); | |
2417 | ||
2418 | CHECK_OPEN_PORT(); | |
2419 | ||
2420 | if (!config) | |
9b1502ef | 2421 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2422 | |
2423 | TRY(get_config(port, &data, config)); | |
2424 | ||
2425 | RETURN_OK(); | |
2426 | } | |
2427 | ||
970f279a AJ |
2428 | SP_API enum sp_return sp_set_config(struct sp_port *port, |
2429 | const struct sp_port_config *config) | |
e33ab9aa | 2430 | { |
8f189c4c | 2431 | struct port_data data; |
e33ab9aa ML |
2432 | struct sp_port_config prev_config; |
2433 | ||
c33efc48 ML |
2434 | TRACE("%p, %p", port, config); |
2435 | ||
dec10e31 | 2436 | CHECK_OPEN_PORT(); |
823690ae ML |
2437 | |
2438 | if (!config) | |
c33efc48 | 2439 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2440 | |
e33ab9aa ML |
2441 | TRY(get_config(port, &data, &prev_config)); |
2442 | TRY(set_config(port, &data, config)); | |
74510d4b | 2443 | |
c33efc48 | 2444 | RETURN_OK(); |
74510d4b ML |
2445 | } |
2446 | ||
9b1502ef | 2447 | #define CREATE_ACCESSORS(x, type) \ |
970f279a | 2448 | SP_API enum sp_return sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 2449 | struct port_data data; \ |
e33ab9aa | 2450 | struct sp_port_config config; \ |
c33efc48 | 2451 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2452 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2453 | TRY(get_config(port, &data, &config)); \ |
2454 | config.x = x; \ | |
2455 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2456 | RETURN_OK(); \ |
9b1502ef | 2457 | } \ |
970f279a AJ |
2458 | SP_API enum sp_return sp_get_config_##x(const struct sp_port_config *config, \ |
2459 | type *x) { \ | |
00d8c56d | 2460 | TRACE("%p, %p", config, x); \ |
6aad5bdd UH |
2461 | if (!x) \ |
2462 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); \ | |
9b1502ef ML |
2463 | if (!config) \ |
2464 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2465 | *x = config->x; \ | |
2466 | RETURN_OK(); \ | |
2467 | } \ | |
970f279a AJ |
2468 | SP_API enum sp_return sp_set_config_##x(struct sp_port_config *config, \ |
2469 | type x) { \ | |
9b1502ef ML |
2470 | TRACE("%p, %d", config, x); \ |
2471 | if (!config) \ | |
2472 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2473 | config->x = x; \ | |
2474 | RETURN_OK(); \ | |
9069c2fb ML |
2475 | } |
2476 | ||
9b1502ef ML |
2477 | CREATE_ACCESSORS(baudrate, int) |
2478 | CREATE_ACCESSORS(bits, int) | |
2479 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2480 | CREATE_ACCESSORS(stopbits, int) | |
2481 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2482 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2483 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2484 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2485 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2486 | ||
970f279a AJ |
2487 | SP_API enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, |
2488 | enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2489 | { |
9b1502ef ML |
2490 | if (!config) |
2491 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2492 | |
2493 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2494 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2495 | |
e33ab9aa | 2496 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2497 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2498 | else |
9b1502ef | 2499 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2500 | |
2501 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2502 | config->rts = SP_RTS_FLOW_CONTROL; |
2503 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2504 | } else { |
9b1502ef ML |
2505 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2506 | config->rts = SP_RTS_ON; | |
2507 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2508 | } |
2509 | ||
2510 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2511 | config->dtr = SP_DTR_FLOW_CONTROL; |
2512 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2513 | } else { |
9b1502ef ML |
2514 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2515 | config->dtr = SP_DTR_ON; | |
2516 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2517 | } |
2518 | ||
9b1502ef ML |
2519 | RETURN_OK(); |
2520 | } | |
2521 | ||
970f279a AJ |
2522 | SP_API enum sp_return sp_set_flowcontrol(struct sp_port *port, |
2523 | enum sp_flowcontrol flowcontrol) | |
9b1502ef ML |
2524 | { |
2525 | struct port_data data; | |
2526 | struct sp_port_config config; | |
2527 | ||
2528 | TRACE("%p, %d", port, flowcontrol); | |
2529 | ||
2530 | CHECK_OPEN_PORT(); | |
2531 | ||
2532 | TRY(get_config(port, &data, &config)); | |
2533 | ||
2534 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2535 | ||
e33ab9aa ML |
2536 | TRY(set_config(port, &data, &config)); |
2537 | ||
c33efc48 | 2538 | RETURN_OK(); |
e33ab9aa ML |
2539 | } |
2540 | ||
970f279a AJ |
2541 | SP_API enum sp_return sp_get_signals(struct sp_port *port, |
2542 | enum sp_signal *signals) | |
8cf7c697 | 2543 | { |
c33efc48 ML |
2544 | TRACE("%p, %p", port, signals); |
2545 | ||
dec10e31 | 2546 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2547 | |
2548 | if (!signals) | |
c33efc48 | 2549 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2550 | |
7890cef6 | 2551 | DEBUG_FMT("Getting control signals for port %s", port->name); |
ea667be7 | 2552 | |
8cf7c697 ML |
2553 | *signals = 0; |
2554 | #ifdef _WIN32 | |
2555 | DWORD bits; | |
2556 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2557 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2558 | if (bits & MS_CTS_ON) |
2559 | *signals |= SP_SIG_CTS; | |
2560 | if (bits & MS_DSR_ON) | |
2561 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2562 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2563 | *signals |= SP_SIG_DCD; |
2564 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2565 | *signals |= SP_SIG_RI; |
2566 | #else | |
2567 | int bits; | |
2568 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2569 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2570 | if (bits & TIOCM_CTS) |
2571 | *signals |= SP_SIG_CTS; | |
2572 | if (bits & TIOCM_DSR) | |
2573 | *signals |= SP_SIG_DSR; | |
2574 | if (bits & TIOCM_CAR) | |
2575 | *signals |= SP_SIG_DCD; | |
2576 | if (bits & TIOCM_RNG) | |
2577 | *signals |= SP_SIG_RI; | |
2578 | #endif | |
c33efc48 | 2579 | RETURN_OK(); |
8cf7c697 ML |
2580 | } |
2581 | ||
970f279a | 2582 | SP_API enum sp_return sp_start_break(struct sp_port *port) |
90cc3ee6 | 2583 | { |
c33efc48 ML |
2584 | TRACE("%p", port); |
2585 | ||
dec10e31 | 2586 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2587 | #ifdef _WIN32 |
2588 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2589 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2590 | #else |
2591 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2592 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2593 | #endif |
2594 | ||
c33efc48 | 2595 | RETURN_OK(); |
90cc3ee6 ML |
2596 | } |
2597 | ||
970f279a | 2598 | SP_API enum sp_return sp_end_break(struct sp_port *port) |
90cc3ee6 | 2599 | { |
c33efc48 ML |
2600 | TRACE("%p", port); |
2601 | ||
dec10e31 | 2602 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2603 | #ifdef _WIN32 |
2604 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2605 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2606 | #else |
2607 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2608 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2609 | #endif |
2610 | ||
c33efc48 | 2611 | RETURN_OK(); |
90cc3ee6 ML |
2612 | } |
2613 | ||
970f279a | 2614 | SP_API int sp_last_error_code(void) |
74510d4b | 2615 | { |
7890cef6 | 2616 | TRACE_VOID(); |
74510d4b | 2617 | #ifdef _WIN32 |
9caa2e86 | 2618 | RETURN_INT(GetLastError()); |
74510d4b | 2619 | #else |
9caa2e86 | 2620 | RETURN_INT(errno); |
74510d4b ML |
2621 | #endif |
2622 | } | |
2623 | ||
970f279a | 2624 | SP_API char *sp_last_error_message(void) |
74510d4b | 2625 | { |
7890cef6 | 2626 | TRACE_VOID(); |
c33efc48 | 2627 | |
74510d4b | 2628 | #ifdef _WIN32 |
9a0c4bbd | 2629 | TCHAR *message; |
74510d4b ML |
2630 | DWORD error = GetLastError(); |
2631 | ||
9a0c4bbd | 2632 | DWORD length = FormatMessage( |
74510d4b ML |
2633 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
2634 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2635 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2636 | NULL, | |
2637 | error, | |
2638 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2639 | (LPTSTR) &message, | |
2640 | 0, NULL ); | |
2641 | ||
9a0c4bbd ML |
2642 | if (length >= 2 && message[length - 2] == '\r') |
2643 | message[length - 2] = '\0'; | |
2644 | ||
9caa2e86 | 2645 | RETURN_STRING(message); |
74510d4b | 2646 | #else |
9caa2e86 | 2647 | RETURN_STRING(strerror(errno)); |
74510d4b ML |
2648 | #endif |
2649 | } | |
2650 | ||
970f279a | 2651 | SP_API void sp_free_error_message(char *message) |
74510d4b | 2652 | { |
c33efc48 ML |
2653 | TRACE("%s", message); |
2654 | ||
74510d4b ML |
2655 | #ifdef _WIN32 |
2656 | LocalFree(message); | |
64eec30d ML |
2657 | #else |
2658 | (void)message; | |
74510d4b | 2659 | #endif |
c33efc48 ML |
2660 | |
2661 | RETURN(); | |
74510d4b | 2662 | } |
863b35e6 | 2663 | |
970f279a | 2664 | SP_API void sp_set_debug_handler(void (*handler)(const char *format, ...)) |
863b35e6 | 2665 | { |
c33efc48 ML |
2666 | TRACE("%p", handler); |
2667 | ||
863b35e6 | 2668 | sp_debug_handler = handler; |
c33efc48 ML |
2669 | |
2670 | RETURN(); | |
863b35e6 ML |
2671 | } |
2672 | ||
970f279a | 2673 | SP_API void sp_default_debug_handler(const char *format, ...) |
863b35e6 ML |
2674 | { |
2675 | va_list args; | |
2676 | va_start(args, format); | |
2677 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2678 | fputs("sp: ", stderr); |
863b35e6 ML |
2679 | vfprintf(stderr, format, args); |
2680 | } | |
2681 | va_end(args); | |
2682 | } | |
524b0e14 | 2683 | |
970f279a | 2684 | SP_API int sp_get_major_package_version(void) |
524b0e14 UH |
2685 | { |
2686 | return SP_PACKAGE_VERSION_MAJOR; | |
2687 | } | |
2688 | ||
970f279a | 2689 | SP_API int sp_get_minor_package_version(void) |
524b0e14 UH |
2690 | { |
2691 | return SP_PACKAGE_VERSION_MINOR; | |
2692 | } | |
2693 | ||
970f279a | 2694 | SP_API int sp_get_micro_package_version(void) |
524b0e14 UH |
2695 | { |
2696 | return SP_PACKAGE_VERSION_MICRO; | |
2697 | } | |
2698 | ||
970f279a | 2699 | SP_API const char *sp_get_package_version_string(void) |
524b0e14 UH |
2700 | { |
2701 | return SP_PACKAGE_VERSION_STRING; | |
2702 | } | |
2703 | ||
970f279a | 2704 | SP_API int sp_get_current_lib_version(void) |
524b0e14 UH |
2705 | { |
2706 | return SP_LIB_VERSION_CURRENT; | |
2707 | } | |
2708 | ||
970f279a | 2709 | SP_API int sp_get_revision_lib_version(void) |
524b0e14 UH |
2710 | { |
2711 | return SP_LIB_VERSION_REVISION; | |
2712 | } | |
2713 | ||
970f279a | 2714 | SP_API int sp_get_age_lib_version(void) |
524b0e14 UH |
2715 | { |
2716 | return SP_LIB_VERSION_AGE; | |
2717 | } | |
2718 | ||
970f279a | 2719 | SP_API const char *sp_get_lib_version_string(void) |
524b0e14 UH |
2720 | { |
2721 | return SP_LIB_VERSION_STRING; | |
2722 | } | |
2723 | ||
2724 | /** @} */ |